抄録
In 1983, 711 pediatric malignant solid tumors were resistered to the Japanese Society of Pediatric Surgeons under the support of the Children's Cancer Association of Japan. Among those, there were 164 neuroblastoma group tumors, 56 malignant renal tumors, 49 liver tumors, 152 teratomas, 34 rhabdomyosarcomas and 256 other tumors. In 164 neuroblastoma group tumors, there were 109 neuroblastemas, 42 ganglioneuroblastomas and 13 ganglioneuromas. Eight cases were discovered under the nation-wide VMA mass screening system. Primary tumors were resected totally in 78 cases and subtotally in 14 cases. Second look operation was carried out in 23 cases. Among renal tumors, there were 49 Wilms' tumors, 4 adenocarcinomas and 2 mesoblastic nephromas. Tumors were resected except in 4 cases. Chemotherapy was given to all the Wilms' tumors. Among the liver tumors, there were 28 hepatoblastomas, 8 hepatocarcinomas and 3 undifferentiated sarcomas. In macroscopic findings, 24 were massive, 10 were multi-nodular and 5 were diffuse in type. In the stage distribution, 73% were in Stage III or IV. In teratoma group, 90 mature and immature teratomas were included. Twenty-three were head and neck tumors, including pineal teratomas, 7 mediastinal, 49 ovarian, 19 testicular and 29 sacrococcygeal. Tolal resection was carried out in 78%. VAC was the main chemotherapeutic method. In rhabdomyosarcoma, 10 were in pelvis, 6 in thoracax, 6 in extremities and 5 in abdominen. In other tumors, 70 malignant lymphomas and 96 brain tumors were included.
