Rhabdomyomatous Mesenchymal Hamartoma of Skin

Abstract

A case of a solitary mesenchymal hamartoma occurring on the chin of a newborn infant is presented. The skin nodule exhibited an abnormal arrangement of dermal mesenchymal elements and, in particular, there was prominence of skeletal muscle. This lesion, which appears to be unique, has been termed rhabdomyomatous mesenchymal hamartoma of skin.