Subacute cortical infarct: the value of contrast-enhanced FLAIR images in inconclusive DWI
Abstract Primary extranodal lymphoma is defined as a lymphoma at a solitary extranodal site, with or without involvement of the lymph nodes. The clinical and radiological features of extranodal lymphoma have been documented in recent studies. In this pictorial essay, we reviewed imaging findings of extranodal lymphoma in the head and neck region.Resumo Linfoma extranodal prim ário é definido como um sítio extranodal solitário de linfoma, com ou sem envolvimento dos gânglios linfáticos. As características clínicas e radiológicas do linfoma extranodal foram documentadas em estudos recentes. Neste ensaio revisamos os...
Source: Radiologia Brasileira - August 20, 2019 Category: Radiology Source Type: research
Tomographic findings in Meckel’s diverticulitis
Abstract Primary extranodal lymphoma is defined as a lymphoma at a solitary extranodal site, with or without involvement of the lymph nodes. The clinical and radiological features of extranodal lymphoma have been documented in recent studies. In this pictorial essay, we reviewed imaging findings of extranodal lymphoma in the head and neck region.Resumo Linfoma extranodal prim ário é definido como um sítio extranodal solitário de linfoma, com ou sem envolvimento dos gânglios linfáticos. As características clínicas e radiológicas do linfoma extranodal foram documentadas em estudos recentes. Neste ensaio revisamos os...
Source: Radiologia Brasileira - August 20, 2019 Category: Radiology Source Type: research
Extranodal lymphoma of the head and neck: a pictorial essay
Abstract Primary extranodal lymphoma is defined as a lymphoma at a solitary extranodal site, with or without involvement of the lymph nodes. The clinical and radiological features of extranodal lymphoma have been documented in recent studies. In this pictorial essay, we reviewed imaging findings of extranodal lymphoma in the head and neck region.Resumo Linfoma extranodal prim ário é definido como um sítio extranodal solitário de linfoma, com ou sem envolvimento dos gânglios linfáticos. As características clínicas e radiológicas do linfoma extranodal foram documentadas em estudos recentes. Neste ensaio revisamos os...
Source: Radiologia Brasileira - August 20, 2019 Category: Radiology Source Type: research
Snapping scapula syndrome: pictorial essay
Abstract Snapping scapula syndrome manifests as an audible or palpable crackling during the sliding movements of the scapula over the rib cage, often perceived during physical or professional activities. It can be caused by morphological alteration of the scapula and rib cage, by an imbalance in periscapular musculature forces (dyskinesia), or by neoplasia (bone tumors or soft tissue tumors). In this pictorial essay, we review the main causes of snapping scapula syndrome, exemplified by a collection of didactic cases.Resumo A s índrome da escápula em ressalto manifesta-se como uma crepitação audível ou palpável duran...
Source: Radiologia Brasileira - August 20, 2019 Category: Radiology Source Type: research
Common pitfalls in renal mass evaluation: a practical guide
Abstract More than half of patients over 50 years of age have had at least one focal renal lesion detected as an incidental finding during an ultrasound, computed tomography, or magnetic resonance imaging examination. Although the majority of such lesions can be easily detected and correctly characterized, misdiagnoses may occur and are often related to methodological limitations, inappropriate imaging protocols, or misinterpretation. This pictorial essay provides recommendations on how to recognize benign and malignant renal processes that can be potentially missed or mischaracterized in imaging studies.Resumo Mais da met...
Source: Radiologia Brasileira - August 20, 2019 Category: Radiology Source Type: research
Ultrasound elastography in the evaluation of thyroid nodules: evolution of a promising diagnostic tool for predicting the risk of malignancy
Abstract The elastic properties of tissue have always been of interest in clinical practice. In the past, the identification of structures that were stiffer on physical palpation would raise the suspicion that “ there was something wrong ” . With the development and advancement of medicine, there proved to be a true correlation in the prediction of malignancy of a lesion: malignant disease tends to stiffen the affected tissue, either by increased cell proliferation or fibrosis. Palpation is the oldest method for the detection of thyroid nodules, which is informed by the knowledge that malignant thyroid lesions tend to ...
Source: Radiologia Brasileira - August 20, 2019 Category: Radiology Source Type: research
Computed tomography-guided puncture using a mobile application for a motion sensor-equipped smartphone
Conclusion: Results of specific clinical tests and MRI findings indicate that the IFS and QFS are significantly reduced in patients with IFI.Resumo Objetivo: Avaliar, prospectivamente, os valores m édios dos espaços isquiofemoral e quadrado femoral em pacientes com impacto isquiofemoral e em um grupo controle. Materiais e Métodos: Estudo prospectivo incluindo pacientes submetidos a ressonância magnética da articulação do quadril em um intervalo de três meses. Os pacientes com dor glú tea profunda, com pelo menos um teste clínico positivo para impacto isquiofemoral e alterações de sinal no músculo quadrado fe...
Source: Radiologia Brasileira - August 20, 2019 Category: Radiology Source Type: research
Pulmonary nodule localization guided by computed tomography using a nitinol guidewire before video-assisted thoracoscopic surgery
Conclusion: Results of specific clinical tests and MRI findings indicate that the IFS and QFS are significantly reduced in patients with IFI.Resumo Objetivo: Avaliar, prospectivamente, os valores m édios dos espaços isquiofemoral e quadrado femoral em pacientes com impacto isquiofemoral e em um grupo controle. Materiais e Métodos: Estudo prospectivo incluindo pacientes submetidos a ressonância magnética da articulação do quadril em um intervalo de três meses. Os pacientes com dor glú tea profunda, com pelo menos um teste clínico positivo para impacto isquiofemoral e alterações de sinal no músculo quadrado fe...
Source: Radiologia Brasileira - August 20, 2019 Category: Radiology Source Type: research
Evaluation of the ischiofemoral space: a case-control study
Conclusion: Results of specific clinical tests and MRI findings indicate that the IFS and QFS are significantly reduced in patients with IFI.Resumo Objetivo: Avaliar, prospectivamente, os valores m édios dos espaços isquiofemoral e quadrado femoral em pacientes com impacto isquiofemoral e em um grupo controle. Materiais e Métodos: Estudo prospectivo incluindo pacientes submetidos a ressonância magnética da articulação do quadril em um intervalo de três meses. Os pacientes com dor glú tea profunda, com pelo menos um teste clínico positivo para impacto isquiofemoral e alterações de sinal no músculo quadrado fe...
Source: Radiologia Brasileira - August 20, 2019 Category: Radiology Source Type: research
The added value of diffusion-weighted imaging in the preoperative assessment of endometrial cancer
Conclusion: The addition of DWI apparently improves the diagnostic accuracy of MRI in the preoperative assessment of the depth of myometrial invasion in endometrial cancer, which may be particularly helpful in patients for whom contrast agents are contraindicated.Resumo Objetivo: Determinar o valor adicional da difus ão (DWI) em ressonância magnética (RM) na avaliação pré-operatória da invasão miometrial do câncer do endométrio, em comparação com sequências T2 e com o estudo dinâmico após contraste paramagnético (dynamic contrast-enhanced - DCE). Materiais e Métodos: Estudo retrospectivo inclui ndo 44 mu...
Source: Radiologia Brasileira - August 20, 2019 Category: Radiology Source Type: research
The role of percutaneous transhepatic biliary biopsy in the diagnosis of patients with obstructive jaundice: an initial experience
Conclusion: PTBB is a safe, viable, simple technique with a high rate of true-positive results for the definitive diagnosis of obstructive jaundice.Resumo Objetivo: Avaliar a precis ão diagnóstica da colangiobiópsia trans-hepática percutânea (CBTP) em pacientes com suspeita de obstrução biliar. Materiais e Métodos: Análise retrospectiva de 18 pacientes apresentando icterícia obstrutiva foram submetidos a CBTP. Em cada paciente, 3 a 10 fragmentos foram coletados da le são. O diagnóstico final foi confirmado por relatório anatomopatológico. Adicionalmente, foram registrados a análise laboratorial antes do pr...
Source: Radiologia Brasileira - August 20, 2019 Category: Radiology Source Type: research
Morphologic criteria of vermiform appendix on computed tomography and a possible risk of developing acute appendicitis
Conclusion: Hypothetical risk factors for obstruction of the vermifor m appendix detected on CT were not associated with acute appendicitis. That suggests that factors other than those related to mechanical obstruction are implicated in the pathogenesis of acute appendicitis.Resumo Objetivo: Avaliar a correla ção de critérios morfológicos do apêndice cecal por tomografia computadorizada (TC) e o risco de apendicite aguda. Materiais e Métodos: Casos foram definidos como apendicite aguda confirmada cirurgicamente que tiveram pelo menos dois exames de TC: um no diagnóstico de apendicite aguda e outr o no mínimo um m...
Source: Radiologia Brasileira - August 20, 2019 Category: Radiology Source Type: research
Impact of breast magnetic resonance imaging on the locoregional staging and management of breast cancer
Conclusion: Breast MRI is an useful tool for the locoregional staging of breast cancer, because it provides useful information that can have a positive impact on patient treatment.Resumo Objetivo: Avaliar o impacto do uso da resson ância magnética (RM) no estadiamento pré-operatório do câncer de mama. Materiais e Métodos: Foram avaliadas 61 pacientes com carcinoma mamário submetidas a RM das mamas, no período de agosto de 2015 a abril de 2016. Um mastologista foi questionado sobre a conduta terapêutica indicada diant e dos dados da paciente e dos exames convencionais e, após realização da RM, foi novamente qu...
Source: Radiologia Brasileira - August 20, 2019 Category: Radiology Source Type: research
We need a new concept: from complementary examination to a source of value
(Source: Radiologia Brasileira)
Source: Radiologia Brasileira - August 20, 2019 Category: Radiology Source Type: research
Magnetic resonance imaging in women recently diagnosed with breast cancer. Where are we headed?
(Source: Radiologia Brasileira)
Source: Radiologia Brasileira - August 20, 2019 Category: Radiology Source Type: research
