Pain Relief Surgery for Lumbar Metastasis of Parotid Gland Cancer

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We report an experience of pain relief surgery for lumbar metastasis of parotid gland cancer. A 52-year-old male visited our hospital with the complaint of lower back pain. His left parotid gland had been extirpated ten years previously because of adenoid cystic carcinoma. As a result of investigation, lumbar metastasis of adenoid cystic carcinoma was identified. Lower back pain decreased after radiotherapy, but the pain worsened again approximately six months after radiotherapy.We used morphine for pain relief, but the effect was insufficient. So an operation for pain relief was performed by an orthopedic surgeon. Posterior decompression and stabilization reduced the pressure of the vertebral lesion on the spinal cord. Lower back pain was well controlled after surgery until his death from respiratory failure due to the lung metastasis.