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Mycopathologia
January 2025
Teikyo University Institute of Medical Mycology (TIMM), 359 Otsuka, Hachioji, Tokyo, 192-0395, Japan.
We describe a novel Malassezia species named Malassezia polysorbatinonusus, isolated from a Japanese patient with seborrheic dermatitis. The internal transcribed spacer (ITS) region of the isolate (LSEM 4845) were only 94.7% identical to those of M.
View Article and Find Full Text PDFContact Dermatitis
January 2025
Department of Dermatology, Tokyo Medical University, Tokyo, Japan.
Nihon Shokakibyo Gakkai Zasshi
January 2025
Division of Gastroenterological, Hepato-Biliary-Pancreatic, Transplantation and Pediatric Surgery, Department of Surgery, Shinshu University School of Medicine.
A 78-year-old male patient came to our hospital with a chief complaint of fever. Computed tomography revealed an indistinct tumor in the pancreatic head, along with dilatation of the bile duct and main pancreatic duct. An endoscopic transpapillary biopsy demonstrated adenocarcinoma in the glandular epithelium and a dense formation of quasi-round cells.
View Article and Find Full Text PDFNihon Shokakibyo Gakkai Zasshi
January 2025
Department of Pathology, Yokohama Municipal Citizen's Hospital.
This case report describes Crohn's disease complicated by squamous cell carcinoma in an enterocutaneous fistula. A 48-year-old male patient was diagnosed with Crohn's disease 24 years ago and has undergone five surgical operations. An enterocutaneous fistula originated from the midline abdominal wound 11 years after the onset.
View Article and Find Full Text PDFPediatr Dermatol
January 2025
Department of Dermatology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA.
Subcutaneous panniculitis-like T-cell lymphoma (SPTCL) is a rare type of non-Hodgkin lymphoma characterized by subcutaneous nodules, indurated plaques, erythema, and cellular infiltrates in the subcutaneous fat. Biopsies show neoplastic cells expressing cytotoxic T-cell markers and displaying moderate cytologic atypia while sparing the dermis and epidermis and showing variable degrees of necrosis, hemorrhage, and inflammatory changes. We describe a pediatric case of SPTCL in a 6-year-old boy, presenting with an unusual targetoid plaque and systemic symptoms, who showed significant improvement on systemic immunosuppressants without chemotherapy.
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