title: Osteosarcomatosis.
abstract: A review of the 690 cases of osteosarcoma in the radiographic file of the Armed Forces Institute of Pathology revealed 29 cases of "osteosarcomatosis" (multiple skeletal sites of osteosarcoma). Fifteen of these patients were 18 years old and under and manifested rapidly appearing, usually symmetric, sclerotic metaphyseal lesions. The remaining 14 patients were more than 18 years old and had fewer, asymmetric sclerotic lesions. In most patients (28 of 29), a radiographically dominant skeletal tumor was seen. Pulmonary metastases occurred in the majority of patients and were detected at the same time as the bone lesions. These 29 patients were studied with regard to demographic data and skeletal distribution and radiographic appearance of their lesions. As a result of the findings, a metastatic origin from a primary dominant osteosarcoma is favored over a multifocal origin as the basis for osteosarcomatosis. Osteosarcomatosis is more commonly encountered in the mature skeleton than has been previously recognized.
authors.affiliation: Department of Radiology, Milton S. Hershey Medical Center, Pennsylvania State University, Hershey 17033.
authors.forename: K D
authors.initials: KD
authors.lastname: Hopper
authors.forename: R P
authors.initials: RP
authors.lastname: Moser
authors.forename: D B
authors.initials: DB
authors.lastname: Haseman
authors.forename: D E
authors.initials: DE
authors.lastname: Sweet
authors.forename: J E
authors.initials: JE
authors.lastname: Madewell
authors.forename: M J
authors.initials: MJ
authors.lastname: Kransdorf
mesh_terms: D000293:Adolescent; D001859:Bone Neoplasms / Q000453:epidemiology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000453:epidemiology / Q000556:secondary; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000453:epidemiology*; D012516:Osteosarcoma / Q000453:epidemiology*; D012189:Retrospective Studies; D014481:United States / Q000453:epidemiology