[Osteochondrosarcoma of breast (author's transl)]

Sarcomas of the breast are rare. The radiological and thermographic features of a mixed malignant chondro- and osteoplastic tumour (osteochondrosarcoma) are described. Mammographically, there was rapid growth of nodular, round smooth tumour, with coarse, confluent and bizarre calcification. Thermography revealed the features of malignancy. In the differential diagnosis, a circular focus with coarse calcification, as occurs in a sarcoma, may be difficult to distinguish from a fibro-adenoma. Such lesions should therefore be removed as soon as possible and submitted to careful histological examination.