Malignant Retro Rectal Tumor: Two Compelling Case Reports

Background: Retrorectal tumors are a challenging pathology in terms of diagnosis and surgical management. They are usually asymptomatic and present a variety of histopathological presentations.

Case Presentation: We report two cases of malignant presacral tumors, a leiomyosarcoma, and a hemangiopericytoma. An asymptomatic rectal mass was discovered during a routine rectal digital examination in a 45-year-old male with a history of anal fistula. After an imaging confirmation, a complete surgical resection was conducted and pathological analysis revealed a leiomyosarcoma. The second patient was a 42-year-old female admitted with a 2-year history of persistent right buttock and low back pain, imaging detected a presacral tumor extending to S1 and S2 that was completely resected and followed with radiotherapy.

Conclusion: Our cases highlight Malignant retrorectal tumors' rarity, diagnostic challenge, and surgical management.