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14 year old patient suffering from a renal cell carcinoma was treated by surgery and irradiation. 1 1/1 years after diagnosis he developed multiple metastases in the brain, skin, bones, and in regional lymph nodes. Cyclophosphamid and vincristin did not reduce the metastases. The literature is reviewed with regard to symptoms, diagnostic procedures, therapy, and prognosis of hypernephrome in childhood.

Animal experimental studies of the small vessels and the ways for drainage of semen in the autopsy specimen were introduced as assumption for the clinical employment in the andrologic urology. The re- and autografting of the testes and the reconstruction of the ways for drainage of the semen as vaso-vasoneostomy and vaso-epididymostomy in case of occlusive azoospermia are the aim. Value and problem of microsurgical operations in experimental animal and autopsy specimen in place of conventional operative techniques are discussed. The introduction of a Cine-TV adapter for operating microscopes of the VEB Carl Zeiss Jena modified by the authors took place. This one improved the film documentation of microsurgical operations.