title: Alterations in 18F-FDG accumulation into neck-related muscles after neck dissection for patients with oral cancers.
abstract: BACKGROUND
  18F-fluoro-2-deoxy-D-glucose (18F-FDG) accumulations are commonly seen in the neck-related muscles of the surgical and non-surgical sides after surgery with neck dissection (ND) for oral cancers, which leads to radiologists having difficulty in diagnosing the lesions. To examine the alterations in 18F-FDG accumulation in neck-related muscles of patients after ND for oral cancer.
  
  
  METHODS
  18F-FDG accumulations on positron emission tomography (PET)-computed tomography (CT) in neck-related muscles were retrospectively analyzed after surgical dissection of cervical lymph nodes in oral cancers.
  
  
  RESULTS
  According to the extent of ND of cervical lymph nodes, the rate of patients with 18F-FDG-PET-positive areas increased in the trapezius, sternocleidomastoid, and posterior neck muscles of the surgical and/or non-surgical sides. In addition, SUVmax of 18F-FDG-PET-positive areas in the trapezius and sternocleidomastoid muscles were increased according to the extent of the ND.
  
  
  CONCLUSIONS
  In evaluating 18F-FDG accumulations after ND for oral cancers, we should pay attention to the 18F-FDG distributions in neck-related muscles including the non-surgical side as false-positive findings.
authors.affiliation: Division of Oral and Maxillofacial Radiology, Kyushu Dental University, 2-6-1 Manazuru, Kokurakita-ku, Kitakyushu 803-8580, Japan, rad-mori@kyu-dent.ac.jp.
authors.forename: S
authors.initials: S
authors.lastname: Kito
authors.forename: H
authors.initials: H
authors.lastname: Koga
authors.forename: M
authors.initials: M
authors.lastname: Kodama
authors.forename: M
authors.initials: M
authors.lastname: Habu
authors.forename: S
authors.initials: S
authors.lastname: Kokuryo
authors.forename: M
authors.initials: M
authors.lastname: Oda
authors.forename: K
authors.initials: K
authors.lastname: Matsuo
authors.forename: T
authors.initials: T
authors.lastname: Nishino
authors.forename: S
authors.initials: S
authors.lastname: Matsumoto-Takeda
authors.forename: M
authors.initials: M
authors.lastname: Uehara
authors.forename: D
authors.initials: D
authors.lastname: Yoshiga
authors.forename: T
authors.initials: T
authors.lastname: Tanaka
authors.forename: S
authors.initials: S
authors.lastname: Nishimura
authors.forename: I
authors.initials: I
authors.lastname: Miyamoto
authors.forename: M
authors.initials: M
authors.lastname: Sasaguri
authors.forename: K
authors.initials: K
authors.lastname: Tominaga
authors.forename: I
authors.initials: I
authors.lastname: Yoshioka
authors.forename: Y
authors.initials: Y
authors.lastname: Morimoto
mesh_terms: D019788:Fluorodeoxyglucose F18 / Q000493:pharmacokinetics*; D006801:Humans; D008207:Lymphatic Metastasis; D009062:Mouth Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D037981:Neck Dissection; D049268:Positron-Emission Tomography; D019275:Radiopharmaceuticals / Q000493:pharmacokinetics*; D014057:Tomography, X-Ray Computed
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18