[Schwannoma of the inferior gluteal nerve as a rare cause of gluteal radiating chronic low back pain]. / Schwannom des Nervus gluteus inferior als seltene Ursache von nach gluteal einstrahlenden chronischen Rückenschmerzen.

This is the first report of a schwannoma of the inferior gluteal nerve (IGN) as a cause of chronic low back pain in a 43-year-old man. The patient suffered from severe pain radiating to the gluteal region. He was treated for months without pain relief and was on long-term disability. Only a targeted sonographic exam revealed a hypoechoic intrapelvic mass along the course of the IGN. By tumor resection, a schwannoma was histologically confirmed. After tumor removal the patient is free of pain with all medication discontinued. He has been fully reintegrated into his professional life.