Asymptomatic retroperitoneal dermoid cyst (benign cystic teratoma) in a 64-year-old male: an autopsy case report.

A primary retroperitoneal dermoid cyst (benign cystic teratoma) is described in a 64-year-old male, who died postoperatively of a leaking grafted abdominal aortic aneurysm. The asymptomatic tumor, measuring 12 cm in greatest diameter, showed an extensive sclerosing lipogranulomatous reaction in its wall and wide-spread adhesions to the vital organs in the right hypochondrium. This patient is the oldest on record with such a lesion.