Andrés Coca-Pelaz1, Juan P Rodrigo, Carlos Suárez. 1. Department of Otolaryngology, Hospital Universitario Central de Asturias, Instituto Universitario de Oncología del Principado de Asturias, Universidad de Oviedo, Oviedo, Spain. acocapelaz@yahoo.es
Abstract
BACKGROUND: The recognition of patients at high risk for the development of distant metastasis (DM) is required to recognize a subset of patients who may benefit from systemic therapy. METHODS: In a retrospective analysis of patients treated between 1995 and 2006, 443 patients with surgically treated primary head and neck squamous cell carcinoma were included. The frequency and clinicopathologic risk factors for DM were evaluated. RESULTS: A total of 60 patients (13.5%) developed DM. In a univariate analysis, tumor site (pharynx), pN classification (pN2-N3), differentiation grade (poorly differentiated), disease stage (stage IV), number (3 or more nodes), and site (bilateral nodes) of nodal metastasis were found to be significantly associated with the risk of DM. In a multivariate analysis, the only significant risk factors were the differentiation grade and the number and site of nodal metastasis. CONCLUSIONS: Patients with pharyngeal poorly differentiated tumors, with multiple or bilateral nodal metastases, are at greater risk of DM and should be considered for systemic therapy.
BACKGROUND: The recognition of patients at high risk for the development of distant metastasis (DM) is required to recognize a subset of patients who may benefit from systemic therapy. METHODS: In a retrospective analysis of patients treated between 1995 and 2006, 443 patients with surgically treated primary head and neck squamous cell carcinoma were included. The frequency and clinicopathologic risk factors for DM were evaluated. RESULTS: A total of 60 patients (13.5%) developed DM. In a univariate analysis, tumor site (pharynx), pN classification (pN2-N3), differentiation grade (poorly differentiated), disease stage (stage IV), number (3 or more nodes), and site (bilateral nodes) of nodal metastasis were found to be significantly associated with the risk of DM. In a multivariate analysis, the only significant risk factors were the differentiation grade and the number and site of nodal metastasis. CONCLUSIONS:Patients with pharyngeal poorly differentiated tumors, with multiple or bilateral nodal metastases, are at greater risk of DM and should be considered for systemic therapy.
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