Neurolytic splanchnic nerve block is effective for treatment of intractable upper abdominal cancer in. The possibility of neurologic complication cannot be completely precluded. A 53 year-old female patient with hepatoma and lung metastasis was submitted for splanchnic nerve block with alcohol. Splanchnic nerve block was performed under radiologic control by image intensifier without any difficulty during procedure. One day after the block, she complained of numbness with sensory deficit in bilateral inguinal area. Neurologic examination revealed that asymmetrical anesthesia, hypoesthesia at $T_{12}-L_2$. She was discharged 70 days after the block with partial improvement. The possibility of alcohol spreading to the low theracic and upper lumbar somatic nerves cannot be excluded.