title: Parosteal (juxtacortical) osteogenic sarcoma. A roentgenological study of 30 patients.
abstract: Detailed analysis of the roentgen findings in 30 well-documented cases of parosteal osteogenic sarcoma (POS) was made. The supposedly characteristic periosteal lucency (cleavage plane) was found in only 30% of the patients. While most tumors were densely ossified, the radiodensity was uniform in only 27%. The surface of the tumor was usually irregular and a truly smooth surface was seen in only 24%. Four patients underwent arteriography; there was vessel displacement by the tumors but all were avascular. No correlation between the histologic grade of tumor and roentgen signs was found.
mesh_terms: D000293:Adolescent; D000328:Adult; D001859:Bone Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D001842:Bone and Bones / Q000473:pathology; D002648:Child; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012516:Osteosarcoma / Q000000981:diagnostic imaging* / Q000473:pathology; D011859:Radiography