A Rare Case Presentation of Retroperitoneal Teratoma in Adults.

Primary retroperitoneal teratoma is a tumor originating from each of the three germ cell layers and generally presenting as a large mass in the gonadal and sacrococcygeal region. It is very rarely seen in adults with scarcely any cases reported in literature (Gatcombe et al. J Surg Oncol 86(2):107-113, 2004).

Non-pancreatic retroperitoneal pseudocyst: a benign disease with non-specific symptoms.

A 76-year-old man presented with abdominal pain and constipation for 1 month. The pain was dull aching in nature and over the right upper abdomen. He also reported decreased appetite.