Abstract
Twelve cases of malignant tumors in undescended testes were studied. Early diagnosis of these tumors was usually difficult as the testes were intraabdominal and the symptoms vague. Sixty percent of the seminoma cases were of the anaplastic aggressive variant. Early treatment of undescended testes included either orchiopexy or orchidectomy in early childhood. Exploratory laparotomy and frozen section examination of the abdominal nodes, followed by silver clip application, aided in better staging and the planning of further treatment.