[Benign and malignant tumors of the thoracic skeleton after percutaneous radiotherapy of Hodgkin's and non-Hodgkin's lymphomas].

Disorders of the skeleton in the thoracic area after percutaneous irradiation of malignant lymphomas are relatively rare. The most common site for pathologic changes is the clavicula. Local overdosage and, in case of malignant alterations, an additional chemotherapy might be the reasons. Among our patients seven lesions occurred, three of them were malignant: two osteogenic sarcomas and one chondrosarcoma.