Retrorectal tumors: Case report and review of literature.

Background: Retrorectal tumors are rare diseases and they can be challenging to diagnose and to manage. Usually they have a slow growth and they are asymptomatic. When present, symptoms depends on the dimensions of the tumor and their position. Inside the retrorectal space may develope a wide variety of benign and malignant masses.
Case Report: A 70-years-old, obese, female patient was admitted to our hospital referring pelvic and lower-back pain for six months. The retrorectal mass was incidentally detected on imaging, and treated with a modified Kraske procedure.
Pathological examination revealed a rare retrorectal epidermoid cyst. We also reviewed the informations present in the scientific literature about the incidence, diagnosis and treatment options of retrorectal tumors.
Conclusions: Even though the rarity and heterogeneity of these tumors, we agree with literature that their surgical management is mandatory in order to achieve a definitive diagnosis and to avoid complications including malignant transformation. The surgical approach should be tailored for each patient and according to tumor's features.
(Copyright © 2020 The Authors. Published by Elsevier Ltd.. All rights reserved.)