title: Interpretation of the origin of a submandibular mass by CT and MRI imaging.
abstract: OBJECTIVE
  To clarify the useful findings for determining whether the submandibular mass is intraglandular or extraglandular.
  
  
  METHODS
  Forty-eight patients with swelling of the submandibular region were reviewed. The relationship between the lesion and the submandibular gland and the displacement of the anterior facial vein were analyzed.
  
  
  RESULTS
  The accuracy of the predictions based on the relationship between the lesion and the submandibular gland (SMG) was 87% on contrast-enhanced CT (CECT), 85% on CT sialography (CTS), and 91% on MRI. Although the displacement of the facial vein outside the lesion suggested an intraglandular lesion, and inside the lesion suggested an extraglandular lesion, these were not sufficient to differentiate the lesions in 7 out of 23 CECT cases and 4 out of 11 MRI cases.
  
  
  CONCLUSIONS
  The finding of a relationship between the lesion and the SMG is the most important finding of this study.
authors.affiliation: Department of Oral and Maxillofacial Radiology, Kyushu University Hospital, Japan. chikui@rad.kyushu-u.ac.jp
authors.forename: Toru
authors.initials: T
authors.lastname: Chikui
authors.forename: Mayumi
authors.initials: M
authors.lastname: Shimizu
authors.forename: Tazuko K
authors.initials: TK
authors.lastname: Goto
authors.forename: Eiji
authors.initials: E
authors.lastname: Nakayama
authors.forename: Kazunori
authors.initials: K
authors.lastname: Yoshiura
authors.forename: Shigenobu
authors.initials: S
authors.lastname: Kanda
authors.forename: Kazunari
authors.initials: K
authors.lastname: Oobu
authors.forename: Seiji
authors.initials: S
authors.lastname: Nakamura
mesh_terms: D003287:Contrast Media; D003884:Dermoid Cyst / Q000175:diagnosis / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D005145:Face / Q000098:blood supply; D005544:Forecasting; D006258:Head and Neck Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging; D006391:Hemangioma / Q000175:diagnosis / Q000000981:diagnostic imaging; D006801:Humans; D008202:Lymphangioma / Q000175:diagnosis / Q000000981:diagnostic imaging; D008279:Magnetic Resonance Imaging; D009333:Neck / Q000000981:diagnostic imaging / Q000473:pathology*; D010690:Phlebography; D012189:Retrospective Studies; D012793:Sialadenitis / Q000175:diagnosis / Q000000981:diagnostic imaging; D012796:Sialography; D013364:Submandibular Gland Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D013365:Submandibular Gland Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014680:Veins / Q000473:pathology
chemical_list: D003287:Contrast Media