[Benign solitary enchondroma (author's transl)].

Solitary enchondroma is a benign bone tumor with a doubtful prognosis changing by topical but not by clinical, roentgenological or histological characteristics. Therefore benign solitary enchondroma should be subdivided in such of peripheral and such of central localisation. Both forms of enchondroma normally show an asymptomatic development. Diagnostic problems occur in central enchondroma because of its radiological, angiographical and szintigraphical aspects. Peripheral enchondroma should be treated by local excision. Recurrences after local treatment are extremely rare. In treatment of central enchondroma bone resection should be performed following common principles of onkological radicality. Local excision is not sufficient; amputation should be reserved for treatment of chondroma close to the trunk or chondrosarcoma.