REPORT OF A CASE
A 20-year-old woman had painless, purple, erythematous, plaquelike lesions of 7 years' duration. At the time of presentation, she was 7 months pregnant. She had no medical problems other than the skin lesions. She denied any trauma to the affected areas.Physical examination revealed a 5×6-cm, purple, irregularly bordered plaque on the dorsal aspect of her left arm (Figure 1) and a 10×8-cm, slightly crusted and ulcerated, erythematous, psoriasiform lesion on the left side of her face. The results of routine laboratory tests were unremarkable. A punch biopsy specimen was obtained from the lesion on the left side of her face (Figure 2).What is your diagnosis?
HISTOPATHOLOGIC FINDINGS AND CLINICAL COURSE
There was a granulomatous reaction containing giant cells and mononuclear inflammatory infiltration around the granuloma. Brown spherical bodies with dark cell walls were evident in the cytoplasm of the giant cells and in the extracellular portion; these organisms stained
Artüz F, Alli N, Lenk N, Güngör E. Purple Erythematous Plaques on the Face and Left Arm. Arch Dermatol. 1997;133(8):1032. doi:10.1001/archderm.1997.03890440115018