Malignant neoplasms of sebaceous glands are rare. Most cases originate on the eyelids, where they develop from a modified sebaceous gland, the Meibomian gland.1 Only 73 cases of extrapalpebral sebaceous gland carcinoma have been reported. A patient had a sebaceous gland carcinoma of the penile shaft, which to my knowledge, is the first case reported for this particular site.
Report of a Case
A 77-year-old man with a slowly growing lesion on the dorsum of the shaft of his penis was seen by a urologist in April 1977. The lesion was present for eight months. Except for two brief episodes of bleeding, the lesion had been asymptomatic. Physical examination by the urologist disclosed a firm, discrete, light-brown, warty mass measuring 1.8 × 1.5 × 1.2 cm located on the dorsum of the distal portion of the circumsized penile shaft, 1.5 cm from the coronal margin. There was no tenderness, but there was a small area of ulceration with crust formation.
Oppenheim AR. Sebaceous Carcinoma of the Penis. Arch Dermatol. 1981;117(5):306-307. doi:10.1001/archderm.1981.01650050062024