[Microsurgical transplantation of bone tumors of uncertain prognosis in athymic XXXX ].

@entity1 @entity511 @entity13626 @entity5 @entity19 @entity421 @entity2721 @entity84 @entity81
Eight cases of @entity1 @entity2721 were transplanted to @entity19 . After such transplants to @entity19 which are immunologically deficient, the @entity5 developed like @entity5 , but maintaining malignant cytological characteristics. The transplants of normal @entity1 tissues or of @entity5 decreased in size or remained stable. The technique allowed a change of an original diagnosis of @entity421 to a final diagnosis of @entity511 . It made it possible to diagnose a @entity13626 , the diagnosis of which was doubtful before the transplant between @entity421 and @entity84 . It was possible to diagnose the malignancy of a haemangiopericytoma of muscle. Two aggressive @entity5 --a non-ossifying @entity81 and @entity5 --were rated as benign after transplantation. This technique also allowed a more precise diagnosis of the grade of one @entity511 . Finally, transplantation also made it possible to test the efficacy of chemotherapy. In a @entity1 so treated, the extreme cell proliferation after transplantation to the nude @entity19 led to a change in the drugs administered.
