Malignant proliferating trichilemmal tumour is a rare cutaneous malignant neoplasm usually occurring in elderly women. We present a case of malignant trichilemmal tumour in a young lady of 26 years of age with a previous history of proliferating trichilemmal tumour at the same site.
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http://dx.doi.org/10.4103/0974-2077.79196 | DOI Listing |
Virchows Arch
January 2025
Department of Pathology, Université de Tours, Centre Hospitalier Universitaire de Tours, 37044, Tours, France.
A case of cutaneous adnexal neoplasm with unusual squamoid morphology and harboring an in frame ACTB::ZMIZ2 fusion transcript was recently described. Herein, we report a second case of adnexal carcinoma harboring similar morphology and an identical in frame ACTB::ZMIZ2 fusion transcript. This 2.
View Article and Find Full Text PDFProliferating trichilemmal tumor (PTT) is a rare, benign adnexal tumor of hair follicles that commonly mimics malignancy. Excellent outcomes can be achieved with early surgical excision. Delayed presentations-as in this giant shoulder PTT-are made possible, in part, by patient education and healthcare accessibility in low-resource settings.
View Article and Find Full Text PDFDermatol Reports
November 2024
Plastic Surgery Unit, Department of Neuroscience, University of Padua.
Keratitis-ichthyosis-deafness syndrome (KID) is a rare genetic disorder characterized by the triad of hyperkeratosis, ichthyosis, and congenital prelingual sensorineural deafness, with less than 100 cases described in the literature. In addition to many other extra-cutaneous manifestations, these patients are burdened by two principal increased risk factors involving the skin: the risk of developing infections and the risk of developing malignant skin tumors, especially Squamous Cell Carcinoma and Trichilemmal tumors. We present the case of a 7-year-old girl with a unique genetic variant described to date, who developed 4 dyskeratotic neoformation.
View Article and Find Full Text PDFDermatopathology (Basel)
December 2024
Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX 77030, USA.
Malignant proliferating trichilemmal tumors (MPTTs), arising from the external root sheath of hair follicles, are exceptionally rare, with limited documentation of their genetic alterations. We present a case of a 64-year-old African American woman who initially presented with a gradually enlarging nodule on her posterior scalp. An initial biopsy at an outside hospital suggested metastatic adenocarcinoma or squamous cell carcinoma (SCC) of an uncertain origin.
View Article and Find Full Text PDFCureus
November 2024
Department of Surgery, Ng Teng Fong General Hospital, Singapore, SGP.
Trichilemmal cysts, also known as pilar cysts, are commonly found on hair-bearing surfaces, such as the scalp or hairline. These are cysts that form from hair follicles and are benign. We describe an unusual case of a middle-aged lady presenting with a longstanding left-sided inframammary mass that had started growing more in the last year prior to the presentation.
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