Kaposi sarcoma of the penis in an HIV-negative patient.

BACKGROUND The penis is an unusual site of presentation for Kaposi sarcoma, especially in immunocompetent patients. CASE PRESENTATION A 52-year-old human immunodeficiency virus (HIV)-seronegative man presented with a reddish, 8 mm in diameter nodule on the glans penis near the coronal sulcus. Histopathology after excision of the lesion was consistent with Kaposi sarcoma. No other cutaneous or mucosal manifestations were present. After a follow-up period of 2 years, no recurrence was observed. CONCLUSION This unusual case suggests that Kaposi sarcoma should be considered in the differential diagnosis of macular, papular, and nodular lesions involving the penis.