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July 1998

A Slowly Enlarging Lesion on the Abdomen

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Arch Dermatol. 1998;134(7):861-866. doi:

There were long, thin, branching strands of basiloid cells arising from the epidermis, embedded in a prominent fibrous stroma demonstrating a complicated lacelike reticular pattern.

The fibroepithelioma of Pinkus,1 which was first described in 1953, is a relatively uncommon tumor that is usually located on the abdomen or loins. It normally has a sessile dome-shaped surface and ranges in color from flesh to pink or brown. It is more indolent than the classic basal cell carcinoma and could be considered part of the trichoepithelioma spectrum.2 It may be found in association with basal cell carcinoma, and multiple lesions have been reported in patients undergoing radiotherapy for ankylosing spondylitis. Local excision is sufficient for treatment.