Case 134 -- Right Upper Anterior Thigh Lesion

Contributed by Steven Ruhoy, MD and Kevin Flynn, MD
Published on line in March 1998

Disclosure Statement: In accordance with the policies on disclosure of the Accreditation Council for Continuing Medical Education and the Faculty Advisory Committee for Continuing Education in the Health Sciences, University of Pittsburgh, presenters for this program have identified no personal relationships with a health care product company which, in the context of their topics, could be perceived as a real or apparent conflict of interest.


The patient is a 26 year old white female with a two year history of a right upper anterior thigh lesion. Examination of the lesion showed a 12 x 10mm. tan, mammilated, intermittently erythematous non-pruritic plaque. The lesion had shown no recent increase in size.

Total cutaneous examination showed no other similar lesions and all nevi detected were less than 5mm in diameter.

There was no significant past medical history except for a cholecystectomy and knee surgery.

The patients' family history is negative for melanoma.

She has no allergies and the only current medications being used are oral contraceptives.

The clinical differential diagnosis included melanocytic nevus, epidermal nevus, mastocytoma, and collagenoma. A punch biopsy was performed.





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