Mammographic demonstration of steatocystoma multiplex.

Steatocystoma multiplex (SM) is a rare inherited cutaneous disorder characterised by multiple subcutaneous oil cysts. We present the radiological features of this uncommon condition in a case report. Numerous lucent, well-circumscribed, smooth-walled nodules appeared in both breasts at mammography. Many lipid-containing intradermal cysts of different sizes were also observed at sonography, scattered over both breasts, axillae, sternal region and abdomen. SM was suspected and no further evaluations were made.