<unk> s are a cutaneous condition characterized by benign neoplasms of follicular germinative cells. Trichoblastic fibroma is a designation used to characterize small nodular<unk> s with conspicuous fibrocytic stroma, sometimes constituting over 50% of the lesion. left Image at left shows a<unk>  from a 68-year-old Caucasian male. It shows a pseudo-encapsulated, multinodular, basaloid tumor with fibrocellular stroma spanning the reticular dermis extending into subcutaneous fat (A). No epidermal connection or retraction artifact was noted. Tumor lobules were arranged as monomorphous basaloid cells in a cribriform pattern with peripheral palisading some resembling abortive hair follicles (B, F). Focally, tumor lobules exhibited squamous eddies, papillary mesenchymal bodies, and a germinative component comprising basaloid cells admixed with distinct pales cells (Zellballen) (C–E, D is an enlargement of boxed area in C).
Trichoblastoma
Hidradenoma
Epidermoid cyst
Lipoblastoma
Thecoma
Dermoid cyst
Trichofolliculoma
Acrospiroma