title: [Roentgenological and pathological diagnoses of primary osseous alveolar sarcoma--report of 3 cases].
abstract: Three cases of primary osseous alveolar sarcoma are reported. The tumor was of two different types as shown on X-ray films. Osteolytic type: the lesions occurred in the flat and short tubular bones with areas of patchy osteolytic destruction. Mixed type: the lesions, located in the long tubular bones, appeared as irregular compact shadow in the bone marrow without periosteal reaction or soft-tissue swelling besides areas of patchy osteolytic destruction. The pathological diagnosis was made according to the following: (1) tumor cells aggregating to form solid nest-like or alveolar structures; (2) antidiastase PAS positive granules in the tumor cell cytoplasm; (3) specific crystals in the tumor cell cytoplasm.
authors.affiliation: General Hospital, Lanzhou Command, PLA.
authors.forename: K Y
authors.initials: KY
authors.lastname: Li
mesh_terms: D000328:Adult; D001859:Bone Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D004407:Dysgerminoma / Q000000981:diagnostic imaging* / Q000473:pathology; D005260:Female; D005528:Foot / Q000000981:diagnostic imaging; D006801:Humans; D007085:Ilium / Q000000981:diagnostic imaging; D008297:Male; D011859:Radiography; D013977:Tibia / Q000000981:diagnostic imaging