title: Comparison of CT and MR imaging for the detection of extranodal neoplastic spread in metastatic neck nodes.
abstract: OBJECTIVE
  To compare computed tomography (CT) and magnetic resonance (MR) imaging for the detection of extranodal neoplastic spread (ENS) in metastatic cervical nodes from head and neck squamous cell carcinoma.
  
  
  METHODS
  17 patients with a squamous cell carcinoma of the head and neck underwent CT and MR imaging. The neck nodes were assessed for ENS and the results compared using pathology from the surgical resection.
  
  
  RESULTS
  Radiologic-pathologic correlation was performed in 51 malignant nodes. The accuracy, sensitivity and specificity were respectively 73, 65, 93% for CT, and 80, 78, 86% for MR imaging. Comparison of CT and MR imaging showed that there was no significant difference between the two modalities for either sensitivity (P = 0.1317) or specificity (P = 0.3173).
  
  
  CONCLUSIONS
  CT and MR imaging are comparable for the detection of ENS.
authors.affiliation: Department of Diagnostic Radiology & Organ Imaging, Prince of Wales Hospital, The Chinese University of Hong Kong, Ngan Shing Street, Shatin, New Territories, Hong Kong SAR, China. b834756@mailserve.cuhk.hk
authors.forename: Ann D
authors.initials: AD
authors.lastname: King
authors.forename: Gary M K
authors.initials: GM
authors.lastname: Tse
authors.forename: Edmund H Y
authors.initials: EH
authors.lastname: Yuen
authors.forename: Edward W H
authors.initials: EW
authors.lastname: To
authors.forename: Alexander C
authors.initials: AC
authors.lastname: Vlantis
authors.forename: Benny
authors.initials: B
authors.lastname: Zee
authors.forename: Amy B W
authors.initials: AB
authors.lastname: Chan
authors.forename: Andrew C
authors.initials: AC
authors.lastname: van Hasselt
authors.forename: Anil T
authors.initials: AT
authors.lastname: Ahuja
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001706:Biopsy; D002294:Carcinoma, Squamous Cell / Q000473:pathology / Q000556:secondary*; D003287:Contrast Media; D005260:Female; D006258:Head and Neck Neoplasms / Q000473:pathology; D006801:Humans; D008197:Lymph Node Excision; D008207:Lymphatic Metastasis / Q000175:diagnosis* / Q000000981:diagnostic imaging; D008279:Magnetic Resonance Imaging / Q000706:statistics & numerical data; D008297:Male; D008875:Middle Aged; D009333:Neck; D011237:Predictive Value of Tests; D011446:Prospective Studies; D012680:Sensitivity and Specificity; D016037:Single-Blind Method; D014057:Tomography, X-Ray Computed / Q000706:statistics & numerical data
chemical_list: D003287:Contrast Media