Seiji Hosokawa1, Daiki Mochizuki2, Goro Takahashi2,3, Jun Okamura2,4, Atsushi Imai2, Ryuji Ishikawa2, Yoshinori Takizawa2, Takashi Yamatodani2, Kiyoshi Misawa2, Hiroyuki Mineta2. 1. Department of Otorhinolaryngology/Head and Neck Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431-3192, Japan. seijih@hama-med.ac.jp. 2. Department of Otorhinolaryngology/Head and Neck Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431-3192, Japan. 3. Yamahoshi ENT Clinic, Hamamatsu, Japan. 4. Department of Otorhinolaryngology, Seirei Hamamatsu General Hospital, Hamamatsu, Japan.
Abstract
BACKGROUND: Cervical nodal metastasis is the most important prognostic factor in patients with head and neck cancers. Unfortunately, nodal dissection at level IIb carries a risk of damage to the spinal accessory nerve. We aimed to determine the prevalence of level IIb metastasis and the relevance of nodal dissection at level IIb in patients with head and neck squamous cell carcinomas. METHODS: During neck dissection, level IIb lymph nodes obtained from 181 patients with head and neck squamous cell carcinomas were removed, processed, and histopathologically examined. All specimens were divided into two groups according to the side (affected and unaffected sides). The number of dissected lymph nodes and prevalence of level IIb metastasis in each group were then determined and compared according to the preoperative clinical N stage (cN0 and cN+). RESULTS: The study included 158 men and 23 women with a median age of 65 years (range, 17-89 years). The prevalence of pathologically confirmed level IIb metastasis was 0% for clinically node-negative (cN0) necks on the unaffected side and 10.34% for clinically node-positive necks (cN+), with an overall prevalence of 2.4%. There was a significant association between clinically determined and pathologically confirmed node negativity at level IIb. CONCLUSION: Our findings suggest that level IIb neck dissection in patients with head and neck squamous cell carcinomas may be required only if preoperative examination reveals multilevel or level IIa metastasis or suspicious level IIb metastasis.
BACKGROUND: Cervical nodal metastasis is the most important prognostic factor in patients with head and neck cancers. Unfortunately, nodal dissection at level IIb carries a risk of damage to the spinal accessory nerve. We aimed to determine the prevalence of level IIb metastasis and the relevance of nodal dissection at level IIb in patients with head and neck squamous cell carcinomas. METHODS: During neck dissection, level IIb lymph nodes obtained from 181 patients with head and neck squamous cell carcinomas were removed, processed, and histopathologically examined. All specimens were divided into two groups according to the side (affected and unaffected sides). The number of dissected lymph nodes and prevalence of level IIb metastasis in each group were then determined and compared according to the preoperative clinical N stage (cN0 and cN+). RESULTS: The study included 158 men and 23 women with a median age of 65 years (range, 17-89 years). The prevalence of pathologically confirmed level IIb metastasis was 0% for clinically node-negative (cN0) necks on the unaffected side and 10.34% for clinically node-positive necks (cN+), with an overall prevalence of 2.4%. There was a significant association between clinically determined and pathologically confirmed node negativity at level IIb. CONCLUSION: Our findings suggest that level IIb neck dissection in patients with head and neck squamous cell carcinomas may be required only if preoperative examination reveals multilevel or level IIa metastasis or suspicious level IIb metastasis.
Authors: K Thomas Robbins; Alfio Ferlito; Jatin P Shah; Marc Hamoir; Robert P Takes; Primož Strojan; Avi Khafif; Carl E Silver; Alessandra Rinaldo; Jesus E Medina Journal: Eur Arch Otorhinolaryngol Date: 2012-08-19 Impact factor: 2.503
Authors: Clare Schilling; Sando J Stoeckli; Maurizio G Vigili; Remco de Bree; Stephen Y Lai; Julio Alvarez; Anders Christensen; David M Cognetti; Anil K D'Cruz; Bernhard Frerich; Renaud Garrel; Naoyuki Kohno; Willem Martin Klop; Cyrus Kerawala; Georges Lawson; Jeremy McMahon; Isabel Sassoon; Richard J Shaw; Jesper F Tvedskov; Christian von Buchwald; Mark McGurk Journal: Head Neck Date: 2019-03-21 Impact factor: 3.147
Authors: Arne Böttcher; Christian S Betz; Stefan Bartels; Bjoern Schoennagel; Adrian Münscher; Lara Bußmann; Chia-Jung Busch; Steffen Knopke; Eric Bibiza; Nikolaus Möckelmann Journal: J Cancer Res Clin Oncol Date: 2020-08-18 Impact factor: 4.553