Résumé
<b>Purpose</b>: We report a case whose anal pain accompanied by rectal cancer was remarkably eliminated by subarachnoid phenol block and sacral nerve root thermocoagulation. <b>Case Report</b>: The subject was a sixty-one-year old male. His anal pain failed to respond to opioid whereas his pain was alleviated by subarachnoid phenol block, but was exacerbated a few weeks later. This relapsing pain was completely eradicated by sacral nerve root thermocoagulation. <b>Conclusion</b>: Anal pain associated with rectal cancer recurrence of pelvic space is sometimes hard to be controlled only by subarachnoid phenol block, but there is a possibility of pain control by combination use with sacral nerve root thermocoagulation. Palliat Care Res 2010; 5(2): 314-316