Choi Jae Young, Choi Eun-Chang, Lee Ho-Ki, Yoo Jong-Bum, Kim Sun Goo, Lee Won-Sang
Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Korea.
J Laryngol Otol. 2003 Dec;117(12):951-4. doi: 10.1258/002221503322683821.
Until now, little was known about the mode of parotid involvement in external auditory canal (EAC) carcinoma. The incidence of parotid node metastasis and direct parotid invasion was examined in patients with EAC carcinoma. The study comprised 11 patients with squamous cell carcinomas (SCC) and 10 patients with adenoid cystic carcinomas (ACC). A retrospective review of the surgical specimens was undertaken with specific reference to parotid node metastasis and parotid invasion. Parotid node metastasis was noted only in two cases of advanced staged SCC, whereas none of the ACC patients showed parotid node metastasis. Direct parotid invasion occurred only in advanced staged SCC, however, it did occur in early stage ACC. Our data indicated that elective parotidectomy for control of occult parotid node metastasis is necessary only in advanced SCC carcinoma, whereas parotid management to secure adequate safety margins is mandatory for advanced SCC and all cases of ACC.
到目前为止，关于外耳道癌累及腮腺的方式鲜为人知。我们对外耳道癌患者腮腺淋巴结转移和腮腺直接侵犯的发生率进行了研究。该研究纳入了11例鳞状细胞癌（SCC）患者和10例腺样囊性癌（ACC）患者。我们对手术标本进行了回顾性分析，特别关注腮腺淋巴结转移和腮腺侵犯情况。仅在2例晚期SCC患者中发现了腮腺淋巴结转移，而ACC患者均未出现腮腺淋巴结转移。直接腮腺侵犯仅发生在晚期SCC患者中，不过在早期ACC患者中也有发生。我们的数据表明，仅在晚期SCC癌中，为控制隐匿性腮腺淋巴结转移而进行选择性腮腺切除术是必要的，而对于晚期SCC和所有ACC病例，为确保足够的安全切缘而进行腮腺处理是必不可少的。
