Clinical experiences of germ cell tumor in cryptorchid testis

The increased risk of malignancy occurring in the cryptorchid testis is well established. In order to investigate the management and outcome of germ cell tumor in cryptorchid testis, we retrospectively reviewed the records of 11 patients with cryptorchid tumor treated at our hospital between January 1973 and December 1996. Mean patient age at diagnosis was 47.6 years (range, 22-80). Of these patients, 3 were found in the inguinal area and 8 in the abdomen. Six occurred in the right cryptorchid testis and 5 in the left. Four patients presented with stage I disease, 4 with stage II, and 3 with stage III. Median follow-up period was 48.0 months (range 1-163). All 3 inguinal cryptorchid tumors and 6 of 8 abdominal cryptorchid tumors were seminoma. The remaining 2 abdominal cryptorchid tumors were nonseminomatous germ cell tumor. Of the 3 patients with inguinal cryptorchid seminomas, 2 with stage I disease were treated with prophylactic radiotherapy to nodal areas and 1 with stage III disease was treated with chemotherapy. Eight patients with abdominal cryptorchid tumors were treated with multidisciplinary approaches, including radiotherapy, cisplatin-based combination chemotherapy, and surgery. The overall survival rate for patients with inguinal and abdominal cryptorchid tumor was 81.8%. Two patients with stage III disease died during treatment and the remaining 9 patients are still alive without evidence of disease.