UPMC Dermatopathology "Case of the Month" Presentations
UPP - Department of Dermatology, Dermatopathology Unit
Case Authors: Carol Roper MD, Larisa Geskin MD, Drazen Jukic MD PhD
DECEMBER 2004 CASE OF THE MONTH
CLINICAL FINDINGS
CLINICAL HISTORY:A 43 year old man presented with
a 1 month history of an asymptomatic nodule on his right arm. It had been steadily
increasing in size. He denied any local trauma. He had never had similar lesions
nor had anyone in his family. Past medical history, medications, allergies,
family history and review of systems were noncontributory.
Physical Examination:
On physical examination, he had a < 1.0 cm firm dermal nodule on his right lateral arm. It was freely mobile and nontender. There was no epidermal change, erythema or fluctuance. Excisional biopsy was performed. Histopathology was significant for the presence of a sharply circumscribed tumor (figure 1) that contained two cell types: basaloid at the periphery and eosinophillic shadow cells centrally. Calcification was present.