Progressive teleangiomatous osteolysis. Case report.

Progressive teleangiomatous osteolysis (P.T.O.) is a very rare disease, particularly when one recalls that only five cases have been recorded at the Rizzoli Institute (Campanacci, 1981). The aetiopathogenesis is unknown and according to Campanacci it is not clear whether it is attributable to an angiomatous condition or to a post-traumatic dystrophy. A typical case is presented, localised in the thoracic cage and complicated by severe haemothorax. The patient was observed over a period of 17 years and made a complete recovery.