title: [Isomorphism of primary and secondary tumors of bone in radiographs (author's transl)].
abstract: The fact that primary and secondary tumors of bone may present identical appearances (isomorphism) in radiographs is due to the unspecific reaction to different diseases of bony tissue. Radiographic differential diagnosis has narrow limits. Interpretation must take account of localization and age of the patient. Two cases of osteoplastic metastases in long bones are described which look very much like osteogenic sarcoma. Some 20 observations of this kind have been collected from the literature. The factors causing primary and reactive proliferation of bone are analyzed in detail.
mesh_terms: D000367:Age Factors; D000368:Aged; D001859:Bone Neoplasms / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008875:Middle Aged; D009362:Neoplasm Metastasis; D012516:Osteosarcoma / Q000000981:diagnostic imaging*; D013997:Time Factors; D014056:Tomography, X-Ray
vernacular_title: Zur Isomorphie primärer und sekundärer Knochengeschwülste im Röntgenbid