Usefulness of the skin biopsy as a tool in the diagnosis of silvery hair syndrome

Pediatric Dermatology, EarlyView.
Source: Pediatric Dermatology - Category: Dermatology Authors: Source Type: research

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We present the case of a 16-year-old patient with multiple asymptomatic confluent papules that appeared on both hand palms after contact with water and which disappeared after drying. The histopathological findings in a skin biopsy after water exposure showed changes in the superficial layers of the stratum corneum and dilatation of sweat gland ducts. This entity of unknown etiology has been related to neuronal and eccrine gland dysfunction. Recently it has been associated with alterations of aquaporins. The “hand-in-the-bucket” sign is a simple useful clinical tool for diagnosis, as histopathological findings ...
Source: Biomedica : Revista del Instituto Nacional de Salud - Category: International Medicine & Public Health Tags: Biomedica Source Type: research
CONCLUSION: In this study, we found a severe nasal disease with destruction and deformity of the nasal septum in 25% of the cases, probably associated with late diagnosis. Leishmania (V.) braziliensis was the predominant species. We described a case of mucosal leishmaniasis in Colombia caused by L. (L.) amazonensis for the first time. PMID: 31529834 [PubMed - in process]
Source: Biomedica : Revista del Instituto Nacional de Salud - Category: International Medicine & Public Health Tags: Biomedica Source Type: research
We report the case of a 48-year old woman with long-standing lepromatous leprosy of 15 years of evolution, with a bacterial index of 4 in the direct smear and the initial skin biopsy. The patient was treated with multidrug therapy for 32 months although the treatment recommended by the World Health Organization (WHO) is only for 12 months. A skin biopsy was taken to determine if there was an active disease. We observed a diffuse dermal inflammation with numerous foreign body giant cells and vacuolated macrophages (Virchow´s cells). These cells contained granular acid-fast material that was also positive with immunohi...
Source: Biomedica : Revista del Instituto Nacional de Salud - Category: International Medicine & Public Health Tags: Biomedica Source Type: research
AbstractPemphigus vulgaris (PV) is a rare autoimmune blistering disease involving the skin and mucous membranes. The prevalence of esophageal involvement remains uncertain. The aim of our study was to determine the frequency of esophageal involvement in patients with PV. This is a single-center electronic database retrospective review of patients with a diagnosis of PV. Data abstracted included demographics, disease characteristics (biopsy results, symptoms, areas affected, treatments), and esophagogastroduodenoscopy (EGD) reports. Of the 111 patients that met eligibility criteria, only 22 (19.8%) underwent EGD. Demographi...
Source: Dysphagia - Category: Speech-Language Pathology Source Type: research
Authors: Cakin MC, Ozdemir B, Kaya-Dagistanli F, Arkan H, Bahtiyar N, Anapali M, Akbas F, Onaran I Abstract Previous in vitro studies suggest a direct relevance for the peptide-free lipid fraction (LF) of platelet-rich plasma (PRP) in biological mechanisms related to wound healing. However, there are no scientific reports to date on the wound healing activities of this lipid component in vivo. Thus, the present study provides a scientific evaluation for the wound healing potential of the lipid portion of the activated PRP. For the wound healing activity assessment, in vivo full-thickness excisional wounds were crea...
Source: Platelets - Category: Hematology Tags: Platelets Source Type: research
Conclusions: HDR brachytherapy may be a valuable option for angiosarcoma treatment. Difficult lesion location may yield non-radical surgery. Surface IMM HDR provides highly conformal plan and allow adjusting the dose to individual clinical situation. PMID: 31523234 [PubMed]
Source: Journal of Contemporary Brachytherapy - Category: Cancer & Oncology Tags: J Contemp Brachytherapy Source Type: research
The yield of skin biopsies in the evaluation of intravascular lymphoma (IVL) is largely unknown in Western patients. Most data supporting this test come from Asian populations, in which both prevalence and disease presentation seem to differ.
Source: Journal of the American Academy of Dermatology - Category: Dermatology Authors: Source Type: research
Publication date: Available online 16 September 2019Source: Stem Cell ResearchAuthor(s): Erica C. Pandolfi, Ernesto J. Rojas, Enrique Sosa, Joanna J. Gell, Timothy J. Hunt, Sierra Goldsmith, Yuting Fan, Sherman J. Silber, Amander T. ClarkAbstractWe generated three human induced pluripotent stem cell (hiPSC) sublines from human dermal fibroblasts (HDF) (MZT04) generated from a skin biopsy donated from a fertile woman. The skin biopsy was broadly consented for generating hiPSC lines for biomedical research, including unique consent specifically for studying human fertility and infertility. hiPSCs were reprogrammed using Send...
Source: Stem Cell Research - Category: Stem Cells Source Type: research
AbstractThe pathogenesis of melasma is not fully understood, and the role of skin basement membrane zone (BMZ) alterations in disease development and the maintenance of hypermelanogenesis are also poorly known. We performed a comparative study to characterize the ultrastructural alterations that occur in BMZ in melasma and adjacent normal skin, as well as we discuss the implications of these changes in the physiopathology of the disease. Pairs of facial skin biopsies (2 mm) from 10 women with melasma and normal skin (
Source: Archives of Dermatological Research - Category: Dermatology Source Type: research
We present cases with unusual presentations and demonstrate the transmission electron microscopic features of these lesions. Furthermore, we co nfirm the importance of achieving full eradication of the etiologic bacilli to prevent recurrent disease.
Source: Head and Neck Pathology - Category: Pathology Source Type: research
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