Solitary fibrous tumor of the kidney: a report of two cases
We present two cases of 40- and 48-year-old males, one with incidental detection of a peripheral mass; another with hilar lesion perceived following investigation of hematuria. Both revealed a spindle-cell proliferation, without mitosis and necrosis. Immunohistochemical studies: positivity for CD34, CD99 and B-cell lymphoma 2 (Bcl-2). No sign of disease were evident nine and five months after surgery, respectively. SFT is mostly benign, but can show malignant behavior. Morphologic and immunohistochemical characteristics are essential for diagnosis.RESUMEN Tumor fibroso solitario (TFS) es una neoplasia mesenquimal infrecuen...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - May 14, 2019 Category: Pathology Source Type: research

Glomus tumor in the abdominal wall
We report a case of a 45-year-old male patient who presented with a painful mass in the abdominal wall. The patient underwent total tumor resection and the anatomical pathology diagnosis was of glomus tumor. The glomus tumor presents differential diagnosis of carcinoid tumor, hemangiopericytoma and vascular leiomyoma.RESUMEN El tumor gl ómico es un tumor raro y benigno de tejidos blandos. Se presenta el caso de un paciente de 45 anos, con el hallazgo de un nódulo doloroso en la pared abdominal. Se realizó una resección completa de la lesión y el diagnóstico por anatomia patol&oacut...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - May 14, 2019 Category: Pathology Source Type: research

Fetal death: obstetric, placental and fetal necroscopic factors
In this study, 21.9%(n = 46) did not have their causa mortis defined. Discussion: The findings of this study show a statistically significant association (p
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - May 14, 2019 Category: Pathology Source Type: research

Histopathological profile of patients diagnosed with malignant tumors assisted in a hospital of reference of Agreste Pernambucano
ABSTRACT Cancer is considered a public health problem and is commonly known because of its high mortality rate worldwide. The histopathological evaluation is a fundamental requirement to determine the nature of the lesion, thus it is considered the gold standard examination for diagnosis of neoplasia. The present study aims to evaluate the histopathological profile of patients with malignant tumors diagnosed at a reference hospital in the Agreste Pernambucano. A cross-sectional, descriptive study of a quantitative documentary survey was conducted using the database of the clinical analysis laboratory of the referred Hospit...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - May 14, 2019 Category: Pathology Source Type: research

Comparative analysis of the histopathological and epidemiological profile of ductal and lobular breast carcinomas diagnosed at the Hospital de Clínicas da Universidade Federal do Paraná during the period 2008-2013
Conclusion: The breast carcinomas evaluated in this study presented a profile similar to that reported in the literature, with some peculiarities inherent to the local pathology service. Nevertheless, the low frequency of in situ cases indicates failure in early diagnosis.RESUMEN Introducci ón: El cáncer de mama es la segunda causa de muerte por cáncer entre mujeres alrededor del mundo, y estudios epidemiológicospueden contribuir al entendimiento de sus mecanismos. Objetivos: Determinar el número de casos de carcinoma de mama diagnosticados en un período de seis anos. Método...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - May 14, 2019 Category: Pathology Source Type: research

Validation of chromogenic in situ hybridization reactions for DNA and RNA detection in formalin-fixed paraffin-embedded tissue
The objective of this study was to validate the deoxyribonucleic acid (DNA) (+) and (-), and ribonucleic acid (RNA) (+) and (-) control probes to be used as quality control for the samples, evaluating preservation of the genetic material. Materials and methods: Twelve histological sections were used (in quadruplicate, n = 48), prepared from a pool of tissues without microscopic changes related to infectious and/or inflammatory processes. The CISH protocol was conducted according to the manufacturer ’ s instructions, standardized under the conditions of our laboratory, using commercial DNA and RNA probes chemically li...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - May 14, 2019 Category: Pathology Source Type: research

Comparative evaluation of the quality of Papanicolaou staining at different intervals of fixation times using 96% ethyl alcohol
Conclusion: The results suggest that there is a significant difference in the staining quality (p-value = 0.01) according to the fixation time.RESUMEN Introducci ón: La fijación de extensiones citológicas consiste en la inmersión inmediata en fijador adecuado para preservar la morfología celular, siendo esencial para el análisis microscópico y la interpretación diagnóstica. Objetivo: Evaluar la influencia de los tiempos de fijación en las caracter ísticas morfológicasy de tinción de muestras fijadas con metanoly tenidas con el m&eacu...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - May 14, 2019 Category: Pathology Source Type: research

Profile of women with cervical changes from a city in the Northeast Brazil
Conclusion: Women infected by Gardnerella vaginalis and older than 30 years of age are more exposed to the development of alterations. Guidelines on prevention and screening should be continuous strategies in public services. Understanding these risk factors is a paramount concern because they are involved in the prevention and etiology process of cervical lesions and cancer.RESUMEN Introducci ón: En Brasil, el cáncer de cuello de útero es la cuarta causa de muertepor cáncer, con 5.430 muertes en 2013 y previsión de 16.370 nuevos casos para 2018. Su aparición se asocia a la infecci...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - May 14, 2019 Category: Pathology Source Type: research

Peritoneal washing in gynecological neoplasias
Conclusion: The prevalence of peritoneal lavage cytology positive for malignancy was 7% in endometrial adenocarcinoma and 20% in ovarian adenocarcinoma. Only the degree of tumor differentiation of ovarian adenocarcinomas showed a significant association with peritoneal washing positivity.RESUMEN Introducci ón y objetivo: La citología del lavadoperitoneal es parte de la estadificación de los adenocarcinomas de endometrio y ovario. El objetivo de este trabajo es estimar la prevalencia de citologías positivas para malignidad en pacientes con diagnóstico de adenocarcinoma de endometrio y/u ov...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - May 14, 2019 Category: Pathology Source Type: research

Evaluation of the clinicai analysis service provided to an emergency department
Conclusion: The results show several opportunities for progress in the relationship between ED and CAS. The improvement of laboratory quality indicators also depends on the involvement of ED physicians and nurses and embraces monitoring, planning, education and investment in system computerization.RESUMEN Introducci ón: El tiempo de entrega de pruebas y la comunicación de valores críticos por el laboratorio clínico son considerados factores determinantes del tiempo de permanencia del paciente en la Sección de Urgencias (SU). Por lo tanto, así como la satisfacción de los m&ea...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - May 14, 2019 Category: Pathology Source Type: research

Cancer: but what if it were a disease caused by an association between microorganisms?
This article makes an analogy and compares the biological behavior of bacteria, viruses and neoplasms, showing several common points in their mechanisms of growth and survival, questioning cancer as a distinct living organism and introducing the hypothesis of synergy between viruses and bacteria in the development of neoplasms. Up to now, there are no experimental studies that effectively investigate the association between more than one microorganism as an etiologic factor of cancer.RESUMO Apesar dos avan ços no conhecimento do comportamento das neoplasias, o entendimento exato dos processos biológicos que e...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - January 10, 2019 Category: Pathology Source Type: research

Investigation of correlation between cytological and histological findings in suspected carcinoma of thyroid
Conclusion: The prevalence of Bethesda II category was lower than predicted by TBSRTC (60%-70%), as well as Bethesda III was higher than recommended (7%). Nevertheless, the corresponding malignancy rates were within the expected ranges.RESUMO Introdu ção: A classificação citopatológica tireoidiana com base no Sistema de Bethesda para Relatos de Citopatologia da Tireoide (SBRCT) padronizou os resultados provenientes de punção aspirativa por agulha fina (PAAF). Seu uso tem facilitado a comunicação entre clínicos, parece reduzir o número de tireoidec...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - January 10, 2019 Category: Pathology Source Type: research

Patient safety by analyzing the information not provided in the requisition orders of cervical cytology test
Conclusion: There is a need for professional training about filling in the information on requis itions, because they collaborate with the increase of the sensitivity and specificity of the cytology test, thus allowing more reliable results that aid in patient safety.RESUMO Introdu ção: O câncer do colo do útero é um sério problema de saúde pública devido a sua alta incidência e mortalidade em países subdesenvolvidos, sendo, desta forma, uma prioridade na saúde mundial. Programas organizados de rastreamento podem reduzir a incidência e a morta...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - January 10, 2019 Category: Pathology Source Type: research

Detection of sexually transmitted infections at a Brazilian gynecology center: high prevalence of co-infections
Conclusion: Since most of the women analyzed were affected by more than one STI, our results suggest that routine screening for these infections at health centers would help in early detection, treatment and prevention of these infections. These measures would also impact on patients ’ cervical cancer control.RESUMO Introdu ção: As infecções sexualmente transmissíveis (ISTs) ainda são um importante problema de saúde pública, e a vigilância é essencial para sua prevenção e seu controle. Objetivo: Avaliar a prevalência das ISTs em ...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - January 10, 2019 Category: Pathology Source Type: research

Turner syndrome and spontaneous pregnancy
The objective of this study is to describe patients with Turner syndrome (TS) who had spontaneous pregnancy and, when possible, to present the frequency of this outcome in this genetic condition. This is a literature review conducted in MedLine/PubMed, using the following English descriptors: Turner syndrome and spontaneous pregnancy. The following filters have been activated: articles with a publication date from the last 10 years that present the descriptors in the title/abstract. Twenty-nine articles were identified using the electronic search. After applying the inclusion and exclusion criteria, the number of articles ...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - January 10, 2019 Category: Pathology Source Type: research

Thrombomodulin and interleukin 6 as potential biomarkers of endothelial dysfunction and inflammation after renal transplant
ABSTRACT Introduction: Endothelial dysfunction may contribute to hypercoagulable and inflammation states presents in renal transplant, chronic kidney disease (CKD) and its causes. These disorders can be evaluated by markers, such as thrombomodulin (TM), von Willebrand factor (vWF) and interleukin 6 (IL-6). Objectives: The aim of this study was to assess TM, vWF and IL-6 in renal transplant recipients (RTR) and associate their plasma levels with primary cause of end-stage renal disease (ESRD) and allograft function. Methods: 160 RTR were grouped according to the primary cause of CKD (G1: glomerulopathy; G2: hypertensive nep...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - January 10, 2019 Category: Pathology Source Type: research

Hsp27 expression and ratio between cell proliferation rate and apoptosis in breast cancer with and without axillary metastases
Conclusion: Quantitative analysis of Hsp27 demonstrated increased protein expression in primary neoplasm tissues and in lymph nodes in carcinomas without axillary sentinel lymph node metastasis. Although the methodology and the number of cases do not allow concluding that this behavior in metastatic disease is a constant finding, this justifies the need to evaluate this finding in future studies.RESUMO Introdu ção: O envolvimento do sistema imunológico no processo de neoplasias vem sendo cada vez mais estudado devido ao seu potencial em terapia antitumorais. Objetivos: Avaliar a expressão de hea...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - January 10, 2019 Category: Pathology Source Type: research

Performance of rapid tests compared to conventional tests used for HIV diagnosis
ABSTRACT Introduction: Early diagnosis is an important tool for strategies to fight human immunodeficiency virus (HIV) infection. Objective: The main objective of this study is to evaluate the comparability of the results of rapid tests (RT) used for the HIV diagnosis in relation to conventional molecular and serological tests in blood samples from a population of men who have sex with men (MSM), from 12 Brazilian capitals. Material and methods: 591 HIV-1 reactive test samples from 4176 MSM participants were submitted to Instituto Adolfo Lutz (IAL) for evaluation by conventional laboratory tests. From these samples with at...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - January 10, 2019 Category: Pathology Source Type: research

Investigation of VEGF gene polymorphism rs35569394 in endometriosis
ABSTRACT Introduction: Endometriosis is a chronic gynecological condition characterized by the presence of endometrial tissue in locations outside the uterus. Its symptoms include dysmenorrhea, dyspareunia, chronic pelvic pain, infertility, dysuria, and dyschezia. Several studies have related the vascular endothelial growth factor (VEGF) gene polymorphisms as a factor for the development of endometriosis. Objectives: The aim of this study was to compare the frequency of the VEGF gene polymorphism rs35569394 in women with endometriosis and a control group, as well as to investigate the association of this polymorphism with ...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - January 10, 2019 Category: Pathology Source Type: research

Evaluation of nonconformities related to sanitary regulations applied to clinical laboratories in public hospital in the city of Rio de Janeiro-RJ from November 2016 to November 2017
ABSTRACT The study presents the main nonconformities related to the sanitary regulations found in clinical laboratory analysis (CLA) attached to a public hospital in the city of Rio de Janeiro (RJ) from November 2016 to November 2017. The evaluation of the nonconformities related to sanitary conditions is fundamental to ensure the goals in improving quality control, increasing the reliability of the results generated and reducing health risks. Through the evaluation of 20 federal and municipal public health laboratories, it was possible to analyze the main sanitary nonconformities in the different laboratories phases (pre-...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - January 10, 2019 Category: Pathology Source Type: research

Would carcinogenesis have a synergistic relatioship with bacteria and virus?
(Source: Jornal Brasileiro de Patologia e Medicina Laboratorial)
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - January 10, 2019 Category: Pathology Source Type: research

Cystic nephroma and DICER1 mutations: report of a hitherto unreported mutation
We present a case of a paediatric cystic nephroma with an unreported DICER1 mutation and explore the differential diagnosis mainly with cystic partially differentiated nephroblastoma.RESUMO Nefroma qu ístico pediátrico é uma neoplasia de patogênese incerta caracterizada por uma arquitetura multilocular, que ocorre maioritariamente em crianças. Alguns casos podem ser esporádicos e outros podem apresentar associação familiar, juntamente com outras neoplasias, constituindo a síndrome DICER1 . Apresentamos o caso de um nefroma quístico pediátrico com u...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - December 12, 2018 Category: Pathology Source Type: research

Description of clinical aspects and microscopy of the hair shaft of a carrier of familial monilethrix
We describe a family with this disease, focusing on its clinical aspects and microscopic hair characteristics. The patient was a 10-year-old female with history of hypotrichosis. In addition to diffuse alopecia, there was brittle hair, with ruptures in the hair shaft at different levels. The hair had a nodular appearance at naked eye. Other family members had the same symptoms, what indicates an autosomal dominant pattern of inheritance. Microscopic analysis revealed capillary fibers with areas of elliptical nodular appearance interspersed with regions of dystrophic constriction.RESUMO A monil étrix é uma con...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - December 12, 2018 Category: Pathology Source Type: research

Quantitation of muscle pathology abnormalities in 18 patients with mitochondrial disorders
CONCLUSION: Pathologic events, groupe d in ascending order of frequency, were RRFs, SDH+ fibers, COX- fibers, and COMBO+ fibers. These data emphasize the importance of the COMBO technique in revealing occult COX deficiency in muscle fibers.RESUMO INTRODU ÇÃO: Desordens mitocondriais são usualmente caracterizadas por: 1. acúmulo de mitocôndria nas fibras musculares que aparecem como fibras vermelhas rasgadas (FVR) ou azuis rasgadas quando coradas, respectivamente, pelo tricrômio modificado de Gomori ou pelo succinato desidrogenase (SDH+); 2. au sência de atividade da citocromo c...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - December 12, 2018 Category: Pathology Source Type: research

Evaluation of the accuracy of frozen section in different anatomical sites
CONCLUSION: The frozen section accuracy of 96.3% found in our study is similar to specialized literature and does not seem to depend on the tissue analyzed.RESUMO INTRODU ÇÃO: O exame intraoperatório por congelação (EIC) visa avaliar histológica e intraoperatoriamente um pequeno fragmento de tecido ou órgão lesado no qual haja dúvida diagnóstica. Entre as indicações do EIC estão a determinação da natureza e a extensão da lesão, com consequente difere nciação entre lesões benignas e mal...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - December 12, 2018 Category: Pathology Source Type: research

HER2-expressing breast tumors are associated with breast cancer stem-cell phenotype CD44+/CD24-
CONCLUSION: CD44+/CD24- phenotype was correlated with molecular subtypes of breast cancer. The highest expression of CD44+/CD24- phenotype was reported in patients with HER2+ disease, a molecular subtype associated with more aggressive behavior and worse prognosis.RESUMO INTRODU ÇÃO: De acordo com a teoria das células-tronco tumorais, os tumores são originários de uma pequena população de células-tronco que perdem o mecanismo de autorregulação e começam a se diferenciar e proliferar indefinidamente. O fenótipo CD44+/CD24- pode ser considera...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - December 12, 2018 Category: Pathology Source Type: research

Sample transport validation: experience of a medium-sized laboratory
CONCLUSION: In the first month, the pre-established temperatures (blood: 10 °C to 22°C/urine-feces: 2°C to 8°C) were not reached until arrival at the central laboratory, and the amount of ice in each bag was gradually increased, daily, until reaching the ideal temperature, in all collection units and the central. Transport routes were changed three times in the most dis tant units. Materials that arrived outside specifications were processed with restrictions, and results were evaluated by the professional responsible for the release. After these modifications, the temperature records of the biological mate...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - December 12, 2018 Category: Pathology Source Type: research

Yellow fever: laboratorial diagnosis and clinical manifestations
ABSTRACT Yellow fever is an infectious disease of acute evolution, initially non-contagious, transmitted by a ribonucleic acid (RNA) virus that belongs to the Flaviviridae family. In the period from December 2016 until March 17, 2017, 1, 561 suspected cases of wild yellow fever were reported to the Ministry of Health in Brazil. Among these cases, 850 (54.8%) remain under investigation, 448 (28.7%) were confirmed and 263 (16.9%) were discarded. Out of the total cases reported, 264 died, 144 (54.5%) were confirmed for the disease, 110 (41.7%) were investigated and 10 (3.8%) were discarded. The case fatality rate among confir...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - December 12, 2018 Category: Pathology Source Type: research

Molecular association of pathogenicity and resistance to multiple antimicrobials in Acinetobacter baumannii strains recovered from patients with diverse infectious diseases
CONCLUSION: There was a possible correlation between gentamicin resistant samples and those that were positive for the ompA gene. The csuE gene correlated positively with ISAba1.RESUMO INTRODU ÇÃO: O sucesso das infecções por Acinetobacter baumannii pode ser atribuído a seus vários fatores de virulência e a mecanismos de resistência a antimicrobianos. OBJETIVO: Avaliar a presença e a correlação entre diferentes fatores de resistência e virulência em amostras clínicas de A. baumannii. MÉTODOS: Estudo conduzido em um hospital...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - December 12, 2018 Category: Pathology Source Type: research

Evaluation of acute toxicity of β-lapachone associated with chitosan as a cytoprotective agent
CONCLUSION: The decrease in β -LAP toxicity after conjugation may be related to the hepatoprotective property of CS.RESUMO INTRODU ÇÃO: A β -lapachona ( β -LAP), um potente agente antitumoral, tem uso terap êutico limitado devido a sua baixa solubilidade e elevada toxicidade. Uma possível estratégia para contornar esses inconvenientes pode ser a utilização de adjuvantes como a quitosana (QS), um polissacarídeo catiônico com propriedades biológicas, como biocompatibilidade e biodegradabilidade. OBJETIVO: Avaliar a ação adjuvante...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - December 12, 2018 Category: Pathology Source Type: research

Aspartate aminotransferase to platelet ratio index (APRI) for differentiation of primary and secondary infection by dengue virus
CONCLUSION: APRI seems to be a powerful tool for early identification of DENV secondary infection cases in health centers.RESUMO INTRODU ÇÃO: A infecção pelo vírus da dengue (DENV) é considerada um grande problema de saúde pública nos países tropicais. A indisponibilidade de testes sorológicos em centros de saúde pública pode afetar negativamente o prognóstico do paciente. OBJETIVO: Este estudo teve como objetivo avalia r a precisão do volume médio de plaquetas (MPV) e o índice da relação de asparta...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - December 12, 2018 Category: Pathology Source Type: research

Is muscle biopsy still necessary for the diagnosis of mitochondrial disease?
(Source: Jornal Brasileiro de Patologia e Medicina Laboratorial)
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - December 12, 2018 Category: Pathology Source Type: research

Thrombotic thrombocytopenic purpura: a case report
ABSTRACT Thrombocytopenic thrombotic purpura (TTP) is a severe hemorrhagic syndrome characterized by thrombocytopenia, microangiopathic hemolytic anemia and microvascular occlusion, besides the associated symptoms that may or may not be present: fever, neurological and renal impairment. The pathophysiology involves the autoimmune or genetic deficiency of a metalloproteinases activity (ADAMTS-13), responsible for the von Willebrand Factor cleavage. The treatment is based on plasmapheresis; and in acute or recurrent cases, corticosteroids and immunosuppressants are associated. In this article, we will discuss a case report a...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - October 5, 2018 Category: Pathology Source Type: research

Experimental validation of a rapid staining method and digital cytology for cervical and anal cancer
ABSTRACT Cytology is used as detection and screening method of malignant and pre-malignant lesions showing their potential since the original works of Papanicolaou. The cytological smears are usually stained with the Pap staining, although this method is time consuming and requires different reagents. The aim of this study is to assess the quality of an original Blue staining in exfoliative smears comparing it with the standard Papanicolaou staining. The new Blue staining allows staining gynecological cytology with high quality standards at reduced cost and time when compared to the Papanicolaou method.RESUMO A citologia &...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - October 5, 2018 Category: Pathology Source Type: research

Interference of cold agglutinin autoantibodies in erythrogram interpretation: a case report and literature review
ABSTRACT The erythrogram is one of the components of the blood count that includes red blood cell (RBC) quantification and evaluation. A correct interpretation and validation of the results obtained in an erythrogram require experience and critical awareness of health professionals. It is imperative to evaluate the interference of physiological variables, collection procedures, manipulation of samples and endogenous variables (such as the presence of cold agglutinin autoantibodies), since these may falsify the results obtained. Cold agglutinin autoantibodies are predominantly immunoglobulin type M (IgM), which cause agglut...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - October 5, 2018 Category: Pathology Source Type: research

Lagochilascariasis: case report
ABSTRACT An unusual case of parasitism by Lagochilascaris minor infection is reported in a 38-year-old woman from Paraupebas, Par á, Brazil. The article summarizes the main characteristics of the disease and its etiological agent, including prevalence, life cycle, clinical course and treatment.RESUMO Relata-se um caso de infec ção por Lagochilascaris minor, parasitose incomum, em mulher de 38 anos de idade, procedente de Paraupebas, Pará, Brasil. O artigo resume as principais características da doença e de seu agente etiológico, incluindo prevalência, ciclo de vida, cu...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - October 5, 2018 Category: Pathology Source Type: research

Serological and molecular evaluation of parvovirus B19 (B19V) in blood donors from the Blood Center of Brasília, Brazil: focus on women of childbearing age
This study provides important data of B19V circulation in the Center-West of Brazil.RESUMO O parvov írus B19 (B19V) pode ser transmitido por via respiratória, verticalmente - da mãe para o feto - e via transfusão de sangue e transplante de órgãos. A infecção por transfusão de sangue ou hemoderivados ocorre devido à resistência do B19V aos métodos de inativação viral. Nosso estudo ava liou a presença do ácido desoxirribonucleico (DNA) B19V e a prevalência de imunoglobulina da classe G (IgG) anti-B19V em mulhe...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - October 5, 2018 Category: Pathology Source Type: research

Assessment of the pre-analytical phase of a clinical analyses laboratory
Conclusion: The evaluation of the QI allowed organizing the improvements that should be prioritized in the laboratory. The Sigma metric was useful for assessing the QIs considered important to the laboratory, for which there are no published specifications. The questionnaire for evaluating the laboratory's service and client's satisfaction was not a reliable tool for assessing the quality of the pre-analytical phase.RESUMO Introdu ção: A fase pré-analítica abrange os procedimentos antes da execução dos testes laboratoriais, sendo eles a requisição, o cadastro de clien...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - October 5, 2018 Category: Pathology Source Type: research

Alkaline phosphatase: reference interval transference from CALIPER to a pediatric Brazilian population
Conclusion: The results demonstrated that the ALP RI for Brazilian children and adolescents are comparable to the CALIPER study in 92.4% of the patients and can be used for this population.RESUMO Introdu ção: A interpretação de exames laboratoriais necessita de intervalos de referência (IR) que podem variar entre diferentes populações. Para o diagnóstico de hipofosfatasia, deve-se determinar limites inferiores do IR da fosfatase alcalina (FA). Objetivo: Transferir os resultados de IR da FA obtidos pela Canadian Laboratory Initiative in Pediatric Reference Intervals (CA...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - October 5, 2018 Category: Pathology Source Type: research

Review of peripheral blood smear slides: assessment of the compliance with criteria used by analysts in a laboratory of a public hospital in Bahia, Brazil
Conclusion: The study evidenced the need of standardization of the criteria for hematoscopy used by analysts to obtain reproducible results that reflect quality and reliability by the prescribing physician. T herefore, it is necessary to invest in training the professionals involved in revision of blood smear slides.RESUMO Introdu ção: Recomendações em literatura e publicações de sociedades científicas têm proposto sistemas e níveis de classificação para comunicar alterações hematoscópicas no hemograma. Visando a uniformiza&cce...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - October 5, 2018 Category: Pathology Source Type: research

Oxidative, inflammatory and cardiometabolic biomarkers of clinical relevance in patients with metabolic syndrome
Conclusion: The combination of IL-6, ultra-sensitive C-reactive protein (us-CRP), ADA, DPP-IV and the increase of TBARS, with the reduction of vitamin C, SH groups and adiponectin, promote inflammation and compromise insulin sensitivity, thus presenting an active role in the pathogenesis of MetS. These findings are significant because they may assist in monitoring clinical changes, in the prevention of future cardiometabolic events in individuals with MetS, and in the identification of inflammatory and oxidative markers that assist in the monitoring and prevention of MetS.RESUMO Introdu ção: A obesidade carac...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - October 5, 2018 Category: Pathology Source Type: research

Evaluation of MALDI-TOF mass spectrometry (VITEK-MS) compared to the ANC card (VITEK 2) for the identification of clinically significant anaerobes
Conclusion: Both methodologies showed an ex cellent performance for the identification of the strains tested with great differences in relation to cost-benefit. MALDI-TOF MS allowed 35 additional identifications and a saving of BRL$ 7,786 with the release of culture positive result five days ahead of the ANC (VITEK 2). TAT reduction may contr ibute to a successful clinical resolution.RESUMO Introdu ção: A identificação das bactérias anaeróbias por métodos convencionais empregados nos laboratórios clínicos demanda muito trabalho e um longo tempo de resposta (TAT...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - October 5, 2018 Category: Pathology Source Type: research

Transference of CALIPER total alkaline phosphatase reference interval to a Brazilian pediatric population
(Source: Jornal Brasileiro de Patologia e Medicina Laboratorial)
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - October 5, 2018 Category: Pathology Source Type: research

Palisaded encapsulated neuroma clinically mimicking a mucocele: report of a case
We report the case of a 21-year-old female patient with the chief complaint of a small tumor on the lower left lip. Intraoral examination revealed a two-month evolution nodular lesion on the left labial mucosa, of resilient consistency and asymptomatic. A history of prior trauma was reported by the patient. A provisional diagnosis of mucocele was established, and an excisional biopsy was performed. The diagnosis was palisaded encapsulated neuroma (PEN). As PEN is considered underdiagnosed by many authors, a discussion on the morphologic diagnostic criteria of this lesion will be provided.RESUMO Relatamos o caso de uma paci...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - August 14, 2018 Category: Pathology Source Type: research

Quantification of bone gain in central giant cell granuloma of the jaws submitted to intralesional corticotherapy
Conclusion: The tools for analysis of pixel values were useful in the quantification of bone gain in patients submitted to intralesional corticosteroid therapy, and these tools should be f urther explored and used during treatment as auxiliary methods in the evaluation of its efficacy.RESUMO Introdu ção: A lesão central de células gigantes (LCCG) é uma alteração óssea de etiologia desconhecida e comportamento clínico variado, que pode acometer os maxilares. Objetivo: Analisar radiografias provenientes de pacientes portadores de LCCG submetidos à corticot...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - August 14, 2018 Category: Pathology Source Type: research

Sediment examination of urine without physical-chemical alterations
ABSTRACT Introduction: It is from the urine sediment examination that many conclusions are drawn by the professional responsible for diagnosis. Because that is a test frequently run in laboratories, it is desirable to reduce costs and time to exam sediment in urine samples considered normal. Objectives: To evaluate the importance of sediment microscopy in urine without physical and chemical alterations. Material and method: This is an epidemiological study of a cross-sectional design developed at a college laboratory based on reports of urine tests performed from January to July, 2017. For comparison between means, Student...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - August 14, 2018 Category: Pathology Source Type: research

The importance of homocysteine levels in the prognosis of patients with chronic renal disease and in hemodialysis patients
Conclusion: Hcy could be an important biomarker of renal disease progression mainly in hemodialysis patients. We emphasize the importance of normalizing plasma levels of this amino acid to ensure a better prognosis in kidney disease.RESUMO Introdu ção: A homocisteína (Hcy) é um dos metabólitos da metionina (Met), um aminoácido essencial proveniente da dieta. Existe uma estreita relação entre os altos níveis plasmáticos de Hcy e o declínio da função renal. A Hcy plasmática e urinária tem sido alvo de estudos como um biom...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - August 14, 2018 Category: Pathology Source Type: research

TNFA gene in Brazilian patients with hemorrhagic stroke or cerebral aneurysm
Conclusion: The TNFA -308 AG genotype is associated with a decreased risk of aneurysm or hemorrhagic stroke in a population from the capital of Brazil, Distrito Federal.RESUMO Introdu ção: Muitas doenças cerebrovasculares relacionam-se com processos inflamatórios, portanto, a influência de vários polimorfismos em doenças tem sido estudada para melhorar o conhecimento sobre os mecanismos fisiológicos do sistema nervoso. Objetivo: Identificar a associação entre um polimo rfismo na posição -308 do gene TNFA e o desenvolvimento de acidente vascu...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - August 14, 2018 Category: Pathology Source Type: research

Harmonization study of results between biochemical analyzers Labmax 240® and Labmax 240 Premium®
Conclusion: The process of harmonization of multiple devices that perform the same laboratory parameters is essential for ensuring quality and reliability of laboratory results and should be standardized and included in routine clinical analysis laboratories.RESUMO Introdu ção: No laboratório clínico, é recomendável a harmonização de equipamentos que visem à homogeneidade dos resultados, quando analisadores similares ou equivalentes são utilizados para desempenho da rotina de realização dos testes. Objetivos: Realizar um estudo de equival&e...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - August 14, 2018 Category: Pathology Source Type: research

Models for releasing the lupus anticoagulant test
Conclusion: ICA aided in identifying the weak antibodies that were probably diluted in the mixing step. There is no gold standard test for the diagnosis of APS, and LAC detection still requires standardization of technique and interpretation.RESUMO Introdu ção: Trombofilia é a suscetibilidade à trombose, de natureza genética, adquirida ou mista. Entre as causas adquiridas, destaca-se a síndrome do anticorpo antifosfolípide (SAF) - doença autoimune caracterizada por anticorpos antifosfolípides, eventos trombóticos ou perda gestacional recorre nte. O diagn...
Source: Jornal Brasileiro de Patologia e Medicina Laboratorial - August 14, 2018 Category: Pathology Source Type: research