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Draf III procedure can be applied for intra-frontal sinus malignant lesions conventionally. But in the confined, predominantly unilateral lesions, Draf IIb procedure is an ideal choice which cause less damage to the normal tissues. We report unilateral sinonasal malignant case with frontal involved. The frontal lesion was removed by Draf IIb procedure and the outcome is well without leaving severe sequelae. Correspondence to: Tengchin Wang, Department of otolaryngology, Tainan municipal hospital No.670, Chong de Rd, East Dist, Tainan City 701, Taiwan, Tel: +8862609926;Email: tengchin27@hotmail.com

Extended draf iib procedure in the treatment of unilateral frontal malignant tumor