Seminomas complicating undescended intraabdominal testes in patients with prior negative findings from surgical exploration.

OBJECTIVE: This paper describes the clinical and imaging characteristics of seminoma complicating intraabdominal testes in three patients who had a history of negative findings from surgical exploration of the inguinal canal and scrotum.

CONCLUSION: Because inguinal surgery for cryptorchidism may fail to disclose intraabdominal testes, surgery that has negative findings should be followed up by a close examination of the abdomen. Seminomas arising from an intraabdominal testis can be large and asymptomatic or may simulate other diseases. Torsion may occur and occasionally appear as acute abdomen. The imaging features can be nonspecific, and the history of cryptorchidism may not be provided. Awareness of the clinical and imaging features of neoplasms involving undescended intraabdominal testes is important for appropriate diagnosis and therapy.