Retrorectal schwannoma in a middle-aged female: A case report

INTRODUCTION AND IMPORTANCE: Primary sacral and presacral lesions are uncommon and pose a significant diagnostic dilemma. Retrorectal schwannoma is a benign primary presacral lesion that is extremely rare and presents with non-specific symptoms. CASE PRESENTATION: A 42-years-old, female patient was admitted for lower-back pain for seven days. The retrorectal mass was detected on imaging, and she underwent laparoscopic excision. Pathological examination revealed a rare retrorectal schwannoma. CLINICAL DISCUSSION: Retrorectal location of schwannomas is rare and the preoperative diagnosis is very difficult as the clinical features and the radiological features are non-specific. In addition, these tumors can be found incidentally on routine rectal or pelvic examinations. As these tumors are benign, encapsulated, and non-invasive, this entity has an excellent prognosis. Despite the tumors' rarity and variety, we concur with the literature that surgical management is required to obtain a clear diagnosis and avoid consequences such as malignant transformation. CONCLUSION: Retrorectal Schwannoma presents a diagnostic and therapeutic challenge. Identification is important because surgical excision, either open or laparoscopic, is curative.