[Occult bladder cancer in incarcerated inguinal hernia. Report of a case and review of the literature].

Objective: To describe a case of incarcerated inguinal hernia containing bladder carcinoma.

Methods/results: A case of urothelial bladder neoplasm presenting with perforation and scrotal abscess is described. The clinical features, incidence and diagnostic aspects are discussed and the literature briefly reviewed.

Conclusion: The association of malignant tumor and hernia of the abdominal wall is uncommon, particularly those involving the inguinal zone. To our knowledge, only 8 cases have been reported from 1965 to 1995, accounting for 5.3% of all hernia sac-associated tumors. The location of this type of tumor delays diagnosis and the outcome is generally poor.