An Unusual Case of Preponderantly Right-Sided Syringomas

Abstract

Syringomas are fairly common, benign, appendageal tumors that are believed to represent tumors of intraepidermal eccrine ducts. 1,2 Multiple lesions on the trunk have been reported as a rare type of syringoma under the name hidradenoma. 3 An unusual case of eruptive syringomas occurred on the trunk and extremities, with a preponderantly right-sided distribution. Report of a Case A 7-year-old boy was seen in 1971 with a two-month history of a skin eruption. On examination, there were pinpoint-sized, hypopigmented to flesh-colored, shiny, grouped papules on the inner aspects of the right thigh, right side of the lower part of the abdomen, and the right forearm (Fig 1). The patient did not return until 1978, when, at the age of 14 years, he had multiple new lesions on the right lower extremity. Many additional papules were present on the right thigh, abdomen, and forearm. There were only a few scattered