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Abstract
Giant solitary trichoepithelioma (GST) is a rare adnexal skin tumor with hair structure differentiation. It varies from trichoepithelioma in size (>2cm) and location (common in thigh and perianal region). So far only 18 cases of GST have been reported worldwide. This is a case of GST in the thigh of a 42 year old man. This form of trichoepithelioma can be a cellular tumor which needs to be differentiated from trichoblastoma, keratotic basal cell carcinoma, nevoid basal cell carcinoma and microcystic adnexal carcinoma.
Highlights
Among many tumors arising from the skin, skin adnexal tumor comprises a significant number of cases
Trichoepithelioma (TE) is a tumor located in the dermis
It was first described by Brooke in 1892 as “Epithelioma Adenoides Cysticum”
Summary
Among many tumors arising from the skin, skin adnexal tumor comprises a significant number of cases. Most of the adnexal tumors are predominantly dermal and many of them may show minimal epidermal connection. These are divided into basaloid, clear or eosinophilic and tumors with glandular differentiation. Trichoepithelioma is of the dermal adnexal tumor with hair structures differentiation. It can be small solitary, multiple or rarely giant solitary form. Though small solitary is quite common, giant solitary trichoepithelioma (GST) is a very rare form of trichoepithelioma with size ranging several centimeters. Common site of its occurrence are thigh and perianal region.[1,2] Here we present a case of GST in the thigh of a 42 year old man
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