Luiz P Kowalski1, André L Carvalho. 1. Department of Head and Neck Surgery and Otolaryngology, Centro de Tratamento e Pesquisa Hospital do Cancer A. C. Camargo, Rua Antonio Prudente 211, 01509-000 São Paulo, Brazil. lp_kowalski@uol.com.br
Abstract
BACKGROUND: The use of selective neck dissection in a positive neck is still controversial. The object of this study was to ascertain the possibility of doing this procedure in oral cavity carcinoma with a single clinically metastatic lymph node smaller than 6 cm (N1 and N2a). PATIENTS AND METHODS: From 1970 to 1994, we analyzed 164 oral cavity cancer patients with clinically N1 or N2a stage cancer submitted to radical neck dissection. RESULTS: The histologic findings did not confirm a metastatic lymph node in 69 (42.1%) cases (pN0) and showed multiple lymph nodes in 19 (11.6%) cases. Moreover, just one patient (0.6%) had a metastatic lymph node at level IV (one case with multiple lymph nodes) and none at level V. CONCLUSIONS: Because we did not find a single metastatic lymph node at levels IV and V and there was a high incidence of pN0 (57.4%) in patients with clinical N1 stage at level I, these patients could be candidates for a supraomohyoid neck dissection (extended or not to level IV) instead of radical neck dissection. Copyright 2002 Wiley Periodicals, Inc.
BACKGROUND: The use of selective neck dissection in a positive neck is still controversial. The object of this study was to ascertain the possibility of doing this procedure in oral cavity carcinoma with a single clinically metastatic lymph node smaller than 6 cm (N1 and N2a). PATIENTS AND METHODS: From 1970 to 1994, we analyzed 164 oral cavity cancerpatients with clinically N1 or N2a stage cancer submitted to radical neck dissection. RESULTS: The histologic findings did not confirm a metastatic lymph node in 69 (42.1%) cases (pN0) and showed multiple lymph nodes in 19 (11.6%) cases. Moreover, just one patient (0.6%) had a metastatic lymph node at level IV (one case with multiple lymph nodes) and none at level V. CONCLUSIONS: Because we did not find a single metastatic lymph node at levels IV and V and there was a high incidence of pN0 (57.4%) in patients with clinical N1 stage at level I, these patients could be candidates for a supraomohyoid neck dissection (extended or not to level IV) instead of radical neck dissection. Copyright 2002 Wiley Periodicals, Inc.
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