Asymptomatic Annular Plaque of the Chin

Desmoplastic Trichoepithelioma with Overlying Pseudoepitheliomatous Hyperplasia Mimicking Squamous Cell Carcinoma in a Pediatric Patient

“…Our case report documents and illustrates the histopathologic findings. DTE is also a rare benign lesion with an estimated incidence of 2 per 10,000 . It usually presents as a flesh‐colored to red papule, typically with a central depression.…”

Familial desmoplastic trichoepithelioma

“…Sites of predilection are sun‐exposed areas, especially cheeks, chin, and forehead. Desmoplastic trichoepithelioma is typically nonfamilial, and 85% of patients are females 1,2 . Review of the literature reveals that familial DT is extremely rare, with only one previous report by Dervan et al.…”

“…Bone formation occasionally occurs 1 . The pathologic differential diagnoses of DT include morpheaform basal cell carcinoma (BCC), trichoepithelioma, syringoma, microcystic adnexal carcinoma, basaloid follicular hamartoma, and trichoadenoma 2 . Histopathologic differentiation between morpheaform BCC and DT may be exceedingly difficult.…”

“…Clinically, DT resembles BCC, sebaceous hyperplasia, conventional trichoepithelioma, granuloma annulare, scar tissue, and scleroderma. A definite diagnosis of DT can be made when a triad of microscopic findings are combined with compatible clinical features 2 . Desmoplastic trichoepithelioma is associated with intradermal nevus at a frequency of approximately 10% 4,6,7 .…”

The clinicopathological spectrum of trichoepitheliomas: a retrospective descriptive study

“…Rarely, TE can also occur on the vulva . MFTs, nevoid, and plaque types have also been reported . MFTs may also rarely present in a linear arrangement following the lines of Blaschko .…”