[A remark on diagnosis of osteogenic sarcoma in a rare location].

Two cases of osteogenic sarcoma localized in the femoral neck have been presented. As it has resulted from literature, such a localization is very rare and it matches great diagnostic difficulties, mainly caused by absence of typical periarticular reactions and ambiguous X-ray pictures. Angiography and computerized tomography are helpful in diagnosis of the type of tumor. Histopathological examination is decisive.