Proliferating trichilemmal tumours are benign but locally aggressive tumours arising from the hair follicle. They are biologically benign lesions, but may be locally aggressive. They are generally solitary lesion and commonly occurring in the scalp of elderly women. Malignant transformation has been known to occur but very rarely. Here we report a rare case of a recurrent malignant trichilemmal tumour of the scalp in a middle aged male which was surgically excised.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4800594 | PMC |
http://dx.doi.org/10.7860/JCDR/2016/17167.7258 | DOI Listing |
Proliferating 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.
View Article and Find Full Text PDFFront Oncol
November 2024
Department of Dermatology, Second Affiliated Hospital of Jilin University, Changchun, China.
Trichilemmal carcinoma is an extremely rare malignant cutaneous tumor derived from the outer root sheath of the hair follicles, which most commonly occurs in the sun-exposed areas of elderly individuals. This article introduces a case of trichilemmal carcinoma that occurred on the scalp of a 36-year-old male patient, the first case reported and treated with surgical excision combined with photodynamic therapy.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!