1.Two cases of testicular tumor in children are presented, One is adenocarcinoma of the left side in a child of four years and five months and the other a seminoma of the left side of a year and two months child. 2.Tumors of the testis are comparatively rare, and particularly rarely found in children. 3.Age. Among tumors of the testis seminoma is definitely of highest incidence and conseqnently the distribution of the whole testicular tumors on ages coincides with the age at which seminoma is apt to develop, most cases being found between 40 and 50 years. When observed only from the viewpoint of the incidence of adenocarcinoma it overwhelmingly occurs in children under six years of age. Seminoma is a testicular tumor of extreme rarity in childhood. 4.The size of the tumor varies greatly; i. e. from the size of a cherry to that of an infant's head. 5.There was found no predilection for the side. However, bilateral growths are considered quite unnsual. 6.The heredity is not proven. 7.Undescended testis, ectopic testis and trauma have some relationship to the development of testicular tumors. 8.Early metastasis occurs in malignant testicular tumor and leads to comparatively rapid termination in death while the benign tumor also has a tendency to turn malignant. The metastasis occurs in many areas therefore presenting extremely poor prognosis unless radical operation is performed in the early stages.
