喉腔及喉咽部平滑肌肉瘤3例报告

Leiomyosarcoma of larynx and hypopharynx

为了解发生于喉腔及喉咽部的平滑肌肉瘤的临床特点，报告1例喉咽部平滑肌肉瘤和2例喉腔平滑肌肉瘤。患者早期症状都不明显，区无特异性，临床表现与该部常见鳞癌极为相似，术前明确诊断有一定困难。因此，治疗应首选大范围手术切除，因早期颈淋巴结转移极少，故对亚临床型淋巴结病变不主张预防性颈淋巴清扫术，放疗可作为辅助或姑息治疗手段。

The laryngeal and hypopharyngeal smooth muscle tumors are very rare. One case of hypopharyngeal leiomyosarcoma and two cases of laryngeal smooth muscle tumors were reported: one angioleiomyoma, one leiomyosarcoma and one carcinoleiomyosarcoma. The patients usually present no characteristic symptoms in early stage and the clinical symptoms are similar to squamous cell carcinoma. lt is difficult to make a correct diagnosis before operation. Treatment of first choice consists of primary radical resection including a large part of normal tissue. Early lymph node metastasis is rare. Precautary neck dissection is not indicated for subclinic cervical nodal disease. Radiotherapy may be taked as adjuvant or palliative measures.