KIDNEY
Tumor.
—Droschl1 reviewed the results of treatment in 66 cases of tumor (hypernephroid) of the kidney from the surgical clinic at Graz, Austria. He described in detail the symptoms, diagnosis and treatment. The treatment was always surgical. The results were poor. He agreed with the statement of Wildbolz that three years after the operation only a third of the patients with such a tumor are still alive. Droschl expressed the opinion that hypernephroid tumor is of a higher grade of malignancy than carcinoma or sarcoma.Delon2 reviewed the embryology of the kidney and the various hypotheses that have been advanced concerning the pathogenesis of renal tumor in children. These hypotheses fall into three groups, namely: (1) that such a tumor in children is of embryonal origin, (2) that it is caused by various inclusions, such as the wolffian body, myotoma and mesoderm, and (3) that it results