Case for diagnosis. Fibroepithelioma of Pinkus in a 76-year-old patient

Basal cell carcinoma in situ of the skin revisited: case reports of the superficial type and fibroepithelioma type of this in situ cutaneous neoplasm

“…Squamous cell carcinoma and malignant melanoma are cutaneous malignancies that usually develop from in situ neoplasms (Table 1), [37][38][39][40][41][42][43][44][45][46][47][48].…”

“…Merkel cell carcinoma also has an in situ precursor that less commonly has been observed (Table 1), [37][38][39][40][41][42][43][44][45][46][47][48]. Recently, a case series of three men with proposed cutaneous basal cell carcinoma in situ has been described [32].…”

“…However, the basal cell carcinoma in situ on the left midback of the man in this paper expands the clinical and pathology presentation of this in situ tumor. Currently, his neoplasm has been referred to as a fibroepithelioma of Pincus [44]. Fibroepithelioma of Pinkus was described in 1953.…”

“…It clinically presents as a nodular lesion often on the back. Microscopic examination shows strands of basaloid tumor cells-that are contiguous with the overlying epithelium-that extend from the epidermis into the dermis [44][45][46][47][48].…”