title: Solitary nodule on the arm of an infant. Infantile myofibromatosis (IM).
mesh_terms: D001132:Arm; D003937:Diagnosis, Differential; D005350:Fibroma / Q000473:pathology; D006801:Humans; D007231:Infant, Newborn; D007889:Leiomyoma / Q000151:congenital / Q000473:pathology* / Q000648:ultrastructure; D008297:Male; D012867:Skin / Q000473:pathology; D012878:Skin Neoplasms / Q000151:congenital / Q000473:pathology* / Q000648:ultrastructure