Retroperitoneal schwannoma: A rare entity with diagnostic challenges

Retroperitoneal schwannomas are rare benign tumors arising from peripheral nerve sheath cells and are often diagnosed incidentally due to their nonspecific clinical presentation. We report the case of a 37-year-old woman presenting with isolated right-sided lower back pain caused by a compressive right retroperitoneal mass. The patient underwent complete surgical excision, and definitive histopathological examination confirmed the diagnosis of a retroperitoneal schwannoma.