Abstract
From 2000 to 2002, 5 patients with hypopharyngeal carcinoma at Ti and T2 underwent laryngopharyngectomy which preserved laryngeal function. Tumor stage was 3 for T1, 2 for T2, 3 for N0, 1 for N1, and 1 for N2b. All the primary sites were the pirif orm sinus. After lateral neck dissection of the diseased side, it goes into the pharynx on a hyoid level, and the pirif orm sinus was removed with setting to clarify visualization of the tumor. A margin of about 2 cm was attached. We performed complication ablation of a quarter in hyoid and thyroid cartilage of the diseased side. If the arytenoid cartilage had no invasion of tumor, it was preserved. The defect part was reconstructed with the forearm free flap in all examples. As a result, at 15-37 months postoperation, all of the cases are satisfactory for primary control and ingestion of staple foods is possible.
