[Primary XXXX : 2 new cases].

@entity1 @entity13996 @entity2698 @entity75 @entity5 @entity2 @entity1600 @entity358 @entity3 @entity158
We describe two new resected cases of primary @entity358 and the review of cases published in the period 1954-2002. The first @entity1 has a large pulmonary mass of the right apex revealed by @entity158 . The right upper lobectomy with free margins reveals @entity2698 . Pelvic and pulmonary @entity3 appear two years after surgery, treated by two series of chemotherapy without clinical response. After acute nephrotoxicity controlled by hemodialysis, the @entity1 dies with distant @entity3 three years and an half after thoracotomy. The second @entity1 develops dry cough and @entity158 with discovery of a cavitary mass in the right pulmonary field. Fine needle aspiration cytology suggests a @entity75 . Three months after extended pneumonectomy, the @entity5 relapses and regresses partially under chemotherapy. Femoral and brain @entity3 are irradiated. The @entity1 dies 22 months after thoracotomy. Histology and immunohistochemistry of both @entity5 closely related to @entity5 confirm @entity13996 . Primary @entity358 is rare and may be benign or malignant. Radical resection is the best treatment. Chemotherapy and radiotherapy may improve the prognosis. Compared with @entity2 , the @entity5 is a slow growing mass, often voluminous, with delayed symptoms, very few @entity1600 , rare brain metastasis, more frequent cutaneous or retroperitoneal dissemination, often after long-term and requiring indeed a 10 to 20 years follow-up.
