ABSTRACT
Seminoma is the most common tumor to occur in abdominal ectopic testes. Intraabdominal seminomas usually presents with secondary signs and symptoms due to the anatomical position of the tumor. We report a case of seminoma developed in abdominal cryptorchid testis associated with torsion. The patient was a 38 year-old male who had complained of left lower abdominal pain radiating to left scrotum. Abdominal ultrasonograph showed a well defined round mass with mixed internal echo in the left lower abdomen. Exploraton revealed that the mass was about 7.5 x 5.5 x 3.5 cm in size and twisted in 180' clockwise and herniated intestine was also seen. We carried out radical orchiectomy. The histopathologic diagnosis was pure seminoma confined to the testis. Postoperative irradiation was performed under the diagnosis of seminoma of stage I.