Smooth muscle hamartoma.
D006222:Hamartoma / Q000473:pathology; D006801:Humans; D007223:Infant; D008297:Male; D009130:Muscle, Smooth / Q000473:pathology; D009379:Neoplasms, Muscle Tissue / Q000473:pathology; D012867:Skin / Q000473:pathology; D012878:Skin Neoplasms / Q000473:pathology