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Cutaneous pathology

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https://www.readbyqxmd.com/read/28538899/case-for-diagnosis-a-bluish-nodule-on-the-scalp
#1
Sylvia Aide Martinez-Cabriales, Ivette Miranda-Maldonado, Jorge Ocampo-Candiani
Acrospiroma, also known as hidradenoma, is a rare cutaneous tumor that has several histological characteristics. As a consequence, a high index of suspicion is necessary for its diagnosis. Here we report a case that illustrates the importance of a good clinical-pathologic correlation in order to recognize this disease.
March 2017: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28536111/surgery-in-late-melanoma-adrenal-metastasis
#2
Marcello Di Martino, Iñigo García Sanz, Ismael Mora-Guzmán, Ángela de la Hoz Rodríguez
Metastatic melanoma to adrenal gland are very infrequent, being generally associated with additional evidence of systemic disease and, consequently, with short-term survival. However, the prognosis and the therapeutic management vary depending on some important oncological features. Long-term survival rates have been described after complete resection of metastatic disease. Here, we report the case of a woman aged 41 years diagnosed with a cutaneous melanoma on the right side of her paravertebral region, level III of Clark, in 2002, who underwent surgical excision of the tumour with negative margins and a negative sentinel node...
May 22, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28532760/research-techniques-made-simple-high-throughput-sequencing-of-the-t-cell-receptor
#3
Tiago R Matos, Menno A de Rie, Marcel B M Teunissen
High-throughput sequencing (HTS) of the T-cell receptor (TCR) is a rapidly advancing technique that allows sensitive and accurate identification and quantification of every distinct T-cell clone present within any biological sample. The relative frequency of each individual clone within the full T-cell repertoire can also be studied. HTS is essential to expand our knowledge on the diversity of the TCR repertoire in homeostasis or under pathologic conditions, as well as to understand the kinetics of antigen-specific T-cell responses that lead to protective immunity (i...
June 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28529555/detection-of-p53-and-bcl-2-expression-in-cutaneous-hemangioma-through-the-quantum-dot-technique
#4
Tian Tang, Duan-Lian Zhang
Hemangioma is one of the most common types of infantile vascular benign tumor. The aim of the present study was to investigate the role of B-cell lymphoma 2 (Bcl-2) and tumor protein p53 (p53) in the proliferation and apoptosis of hemangioma cells. A total of 38 paraffin-embedded hemangioma specimens (16 males and 22 females) and another 5 paraffin-embedded healthy surrounding tissue samples, collected between January 2007 and December 2010, were obtained from the Department of Pathology at Renmin Hospital of Wuhan University (Wuhan, China)...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28526296/mesenchymal-stem-cells-mscs-attenuate-cutaneous-sclerodermatous-graft-versus-host-disease-scl-gvhd-through-inhibition-of-immune-cell-infiltration-in-a-mouse-model
#5
Ji-Young Lim, Da-Bin Ryu, Sung-Eun Lee, Gyeongsin Park, Chang-Ki Min
Human chronic graft-versus-host disease (CGVHD) shares clinical characteristics with a murine sclerodermatous GVHD (Scl-GVHD) model that is characterized by skin thickening and lung fibrosis. A B10.D2 → BALB/c transplant model of Scl-GVHD was used to address the therapeutic effect of mesenchymal stem cells (MSCs) on the development of CGVHD. The clinical and pathological severity of cutaneous Scl-GVHD was significantly attenuated in MSC-treated recipients relative to Scl-GVHD controls. After MSC treatment, skin collagen production was significantly reduced with consistent downregulation of TGF-β expression...
May 16, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28526098/first-description-of-bartonella-koehlerae-infection-in-a-spanish-dog-with-infective-endocarditis
#6
María-Dolores Tabar, Laura Altet, Ricardo G Maggi, Jaume Altimira, Xavier Roura
BACKGROUND: Bartonella koehlerae has been recently described as a new cat- and cat fleas-associated agent of culture-negative human endocarditis. It has been also encountered in one dog from Israel and six dogs from the USA, but other clinically relevant reports involving this bacterium are lacking. RESULTS: A 7-year-old intact male mixed dog presented with clinico-pathological signs consistent with mitral endocarditis and cutaneous hemangiosarcoma. Molecular studies revealed the presence of Bartonella koehlerae DNA in samples from blood and mitral valve tissue...
May 19, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28524065/microrna-in-skin-diseases
#7
Tatiana G Ruksha, Anna V Komina, Nadezhda V Palkina
MicroRNAs are essential regulators of various cellular processes such as cell growth, differentiation, apoptosis, and the immune response, acting as factors for translational repression and/or degradation of target messenger RNA. Currently, microRNAs are considered as promising biomarkers and therapeutic targets for different pathological conditions. Skin may serve as a convenient model for microRNA modulation studies due to the comparatively easy access to targets cells. Cutaneous diseases are characterized by multiple intercellular communication pathways, triggered by diverse stimuli and mediated by heterogenous regulators, including microRNAs...
May 19, 2017: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/28512869/patterns-of-head-and-neck-sarcoma-in-australia
#8
Roger H Woods, J Alexa Potter, Jessica L Reid, Jennie Louise, Taryn Bessen, Gelareh Farshid, Susan J Neuhaus
BACKGROUND: Sarcomas affecting the head and neck often require complex management due to the combination of anatomic, aesthetic and oncological considerations. The incidence and patterns of presentation are poorly understood and have not been reviewed in the Australian population. METHOD: This study sourced incidence and demographic data from the National Cancer Registry at the Australian Institute of Health and Welfare for the years 1982-2009 (corresponding to 97...
May 16, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28512403/papulonodular-secondary-syphilis-presenting-as-multiple-distinct-cutaneous-lesions-in-an-hiv-positive-transgender-woman
#9
Kristina Navrazhina, Brienne D Cressey, Kira Minkis
We present the first reported case of papulonodular secondary syphilis in an HIV-positive transgender female. Syphilis is classified into primary, secondary, latent, and tertiary stages, with secondary syphilis having notably diverse cutaneous manifestations. Our patient presented with diverse lesions throughout her body, all pathologically consistent with papulonodular secondary syphilis. Proper identification of the multiple presentations of syphilis is crucial to early diagnosis and treatment. This report seeks to broaden the scope of dermatological manifestations that arise secondary to papulonodular syphilis in HIV-positive patients...
January 2017: Case Reports in Dermatology
https://www.readbyqxmd.com/read/28511519/a-giant-cutaneous-horn-projecting-from-verrucous-carcinoma-of-buccal-mucosa-a-rare-case-report
#10
Priyankar Singh, Dipesh Nathani, Shashi Ranjan, Rashmi Issar
Cutaneous horn is conical shape of compact keratin that resembles a miniature animal horn. Though morphologically similar to horns in animals they are histologically very different from them. It is a circumscribed, conical, hyperkeratotic dense protrusion with epithelial cornification above the skin surface in response to a wide range of underlying benign and malignant pathological changes. Though benign, a cutaneous horn holds the potential to be premalignant or malignant. In India till now six cases has been reported with cutaneous horn at various unusual sites...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28508832/disease-characteristics-and-treatment-attributes-of-patients-admitted-to-the-oncology-ward-of-a-tertiary-care-government-hospital
#11
Virender Suhag, B S Sunita, Pankaj Vats, Arti Sarin, A K Singh, Mayuri Jain
BACKGROUND: The burden of oncology patients in the most developing countries including India has witnessed a steady, progressive, and significant upward trend attributed mainly to increased life span, availability of better imaging modalities, increased awareness, and lifestyle and environmental changes. The management of such patients in government setup often presents lots of challenges such as advanced stage of presentation, existence of medical comorbid conditions, scarcity of beds, and long multimodal treatment often complicated with therapy-induced toxicities...
January 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28502876/novel-strategy-in-giant-cutaneous-squamous-cell-carcinoma-treatment-the-case-experience-in-a-combination-of-photodynamic-therapy-and-surgery
#12
Wenbo Bu, Yan Wang, Xu Chen, Fang Fang
Case A 90-year-old Chinese man presented to our hospital with a one-year history of a large neoplasm on his right cheek (figure). The patient did not have subjective symptoms but emitted an obvious stench. However, the patient has significant embarrassment and difficult on social interaction due to abnormal appearance and foul smell from lesion. A clinical examination showed that the tumor size was 7cm * 6.5cm * 1.5cm. An X-ray examination showed that the deep tumor was not associated with any bone destruction...
May 11, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28499754/methotrexate-induced-epidermal-necrosis-a-case-series-of-24-patients
#13
Ting-Jui Chen, Wen-Hung Chung, Chun-Bing Chen, Rosaline Chung-Yee Hui, Yu-Huei Huang, Yueh-Tsung Lu, Chang-Wei Wang, Kuo-Hsien Wang, Li-Cheng Yang, Shuen-Iu Hung
BACKGROUND: Methotrexate-induced epidermal necrosis (MEN) is a rare but life-threatening cutaneous reaction that mimics Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN). OBJECTIVES: To investigate the clinicopathology, risk factors, and prognostic factors of MEN. METHODS: We enrolled 24 patients with MEN and 150 controls and analyzed the demographics, pathology, and plasma concentrations of methotrexate (MTX). RESULTS: Patients with MEN showed extensive skin necrosis (mean, 33...
May 10, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28497585/disseminated-cd8-positive-cd30-positive-cutaneous-lymphoproliferative-eruption-with-overlapping-features-of-mycosis-fungoides-and-primary-cutaneous-anaplastic-large-cell-lymphoma-following-remote-solitary-lesional-presentation
#14
Jonathan J Davick, Krishna Aj Mutgi, Karolyn A Wanat, Brian K Link, Vincent Liu
CD8-positive, CD30-positive cutaneous lymphoproliferative disorders comprise a rare subset of T-cell lymphoproliferative conditions, including variants of primary cutaneous anaplastic large cell lymphoma, mycosis fungoides, lymphomatoid papulosis type D, cutaneous gamma-delta T-cell lymphoma, and cutaneous peripheral T-cell lymphoma. These entities share overlapping clinical, histopathologic, and immunophenotypic features, presenting both a clinical and pathological diagnostic challenge. Presented here is a 73-year-old man with a disseminated, indolent CD30+, CD8+ cutaneous lymphoproliferative disorder with overlapping clinical and histopathological features of both mycosis fungoides and primary cutaneous anaplastic large cell lymphoma, as well as features of lymphomatoid papulosis...
May 12, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28492181/coinfection-by-streptococcus-phocae-and-cetacean-morbillivirus-in-a-short-beaked-common-dolphin-delphinus-delphis
#15
J Díaz-Delgado, E Sierra, A I Vela, M Arbelo, D Zucca, K R Groch, A Fernández
We describe gross, histopathological, and immunohistochemical features of Streptococcus phocae and cetacean morbillivirus coinfection in a short-beaked common dolphin Delphinus delphis. Major gross findings were cutaneous purulent nodules in the tail fluke, vegetative mitral valve endocarditis, and presumed postpartum pyometra. Histologic examination revealed bacterial septicemia characterized by widespread intravascular coccoid bacterial emboli. These were associated with fibrinonecrotizing to pyogranulomatous dermatitis and panniculitis, embolic pneumonia, neutrophilic and lymphoplasmacytic meningochoroiditis, random neutrophilic hepatitis, lymphoplasmacytic myocarditis and epicarditis, necrotizing adrenalitis, suppurative endometritis, and multicentric reactive lymphadenopathy...
May 11, 2017: Diseases of Aquatic Organisms
https://www.readbyqxmd.com/read/28492005/longitudinal-melanonychia-in-an-iranian-population-a-study-of-96-patients
#16
Kambiz Kamyab, Maryam Abdollahi, Elaheh Nezam-Eslami, Azita Nikoo, Kamran Balighi, Zahra S Naraghi, Maryam Daneshpazhooh
BACKGROUND: Longitudinal melanonychia (LM) can be a challenging sign since it may be caused by a wide variety of benign and malignant conditions. Cutaneous melanoma is the most important cause of LM. Objective: We performed this study to examine different aspects of LM in Iran, where cutaneous melanoma is rare. METHODS: In this cross-sectional study, we reviewed medical records and pathology reports of a total of 96 patients presenting with LM. These patients had been visited and undergone nail biopsy in Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran...
June 2016: International Journal of Women's Dermatology
https://www.readbyqxmd.com/read/28488020/-unusual-complication-following-placement-of-an-epidural-catheter
#17
M Schlipköter, T Grieser, H Forst
We report an unusual complication following placement of a thoracic epidural catheter in a patient that had undergone surgery for pulmonary metastases of a malignant melanoma. The intra- and postoperative course was initially without complications. At 2 days, there was a small, conspicuous swelling above the site of epidural puncture, which was neither reddened nor painful. No neurological deficits were observed, and the patient explained that he had been aware of the swelling for more than 6 months; thus, the epidural catheter was not deemed to be responsible...
May 9, 2017: Der Anaesthesist
https://www.readbyqxmd.com/read/28485825/new-evidence-of-cutaneous-leishmaniasis-in-north-eastern-italy
#18
V Gaspari, M Ortalli, M P Foschini, C Baldovini, A Lanzoni, R Cagarelli, P Gaibani, G Rossini, C Vocale, R Tigani, G A Gentilomi, C Misciali, S Pesci, A Patrizi, M P Landini, S Varani
BACKGROUND: Human leishmaniasis is on increase the in Mediterranean Europe. However, the exact prevalence of cutaneous leishmaniasis (CL) is largely unknown as underdiagnosis and underreporting are common. OBJECTIVE: To evaluate epidemiological, clinico-pathological and microbiological aspects of CL cases occurring in the Bologna province, north-eastern Italy. METHODS: We performed a retrospective, observational study on CL cases diagnosed in the Bologna province between January 2013 and December 2015...
May 9, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28482042/bap1-mutations-in-high-grade-meningioma-implications-for-patient-care
#19
Ganesh M Shankar, Sandro Santagata
We have recently shown that the BAP1 (BRCA1-associated protein-1) tumor suppressor gene is inactivated in a subset of clinically-aggressive meningiomas that display rhabdoid histomorphology. Immunohistochemistry for BAP1 protein provides a rapid and inexpensive method for screening suspected cases. Notably, some patients with BAP1-mutant meningiomas have germline BAP1 mutations and the BAP1 tumor predisposition syndrome (BAP1-TPDS). It appears that nearly all patients with germline BAP1 mutations develop malignancies by age 55, most frequently uveal melanoma, cutaneous melanoma, pleural or peritoneal malignant mesothelioma or renal cell carcinoma, although other cancers have also been associated with the BAP1-TPDS...
May 8, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28480085/a-tale-of-two-cysts-steatocystoma-multiplex-and-eruptive-vellus-hair-cysts-two-case-reports-and-a-review-of-the-literature
#20
Rachel J Waldemer-Streyer, Ellen Jacobsen
Background. Steatocystoma multiplex (SM) and eruptive vellus hair cysts (EVHC) are uncommon benign tumors of the pilosebaceous unit. Both SM and EVHC are characterized by smooth, asymptomatic papules or nodules, most commonly presenting on the chest, limbs, and abdomen. Most cases of SM and EVHC are sporadic, although less common autosomal dominant inherited forms have been reported. Main Observation. In this report we present two cases of cutaneous cysts exhibiting characteristics of either SM or EVHC. Both patients presented with numerous 1-2 mm asymptomatic papules and responded well to surgical expression by incision and drainage (I&D)...
2017: Case Reports in Dermatological Medicine
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