Özet:

Objective: In this study, we aimed to determine ipsilateral and contralateral occult neck metastasis rate in patients who underwent bilateral neck dissection due to T1-T4 N0 laryngeal carcinoma, and put forward the need for bilateral neck dissection. Material and Methods: This study included 60 patients who underwent bilateral neck dissections due to T1-T4 N0 laryngeal carcinoma between 1998 and 2015. The patients were divided into three groups according to the localization of the tumor (supraglottic, glottic, and transglottic). Each group was divided into 3 subgroups as unilateral lesion, midline lesion, and unilateral lesion passing across the midline. The neck metastases were classified as ipsilateral, contralateral, or bilateral. Results: The tumor was supraglottic in 14, glottic in 13, and transglottic in 33 patients. There was neck metastasis in 9 of 60 patients (3 patients had N1, 3 patients had N2b, and 3 patients had N2c necks). Contralateral neck metastasis was not seen in any of the patients with unilateral tumors. Contralateral neck metastasis was not evident when there was not an ipsilateral neck metastasis. The rate of contralateral neck metastasis in presence of ipsilateral neck metastasis was 33% in supraglottic, 50% in glottic T4a, and 25% in transglottic tumors. Conclusion: The results of this study indicated that unilateral neck dissection was sufficient in all groups in case of unilateral tumors, and unilateral tumors passing across the midline when there is no ipsilateral neck metastasis, but bilateral neck dissection is needed in midline tumors.

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