title: Lytic clavicular lesions in fibromatosis colli.
abstract: Two patients with fibromatosis colli (congenital torticollis) presented with lytic lesions in the clavicle at the insertion of the fibrosed clavicular head of the sternocleidomastoid muscle. Biopsy of one lesion showed intraosseous fibrosis. These lesions are probably not uncommon but radiographs are rarely performed in uncomplicated cases.
mesh_terms: D001862:Bone Resorption / Q000473:pathology*; D002648:Child; D002968:Clavicle / Q000000981:diagnostic imaging / Q000473:pathology*; D005260:Female; D005350:Fibroma / Q000000981:diagnostic imaging / Q000473:pathology*; D006258:Head and Neck Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D006801:Humans; D008297:Male; D009135:Muscular Diseases / Q000473:pathology; D009334:Neck Muscles / Q000473:pathology; D010014:Osteolysis / Q000473:pathology*; D011859:Radiography; D014103:Torticollis / Q000151:congenital*