title: CT appearances of normal and obstructed submandibular duct.
abstract: CT scans of 40 patients without pathology in the floor of the mouth or the submandibular glands were reviewed. Intraglandular ducts were visualized in 27 and extraglandular ducts in 3 patients. The CT appearances of dilated submandibular ducts are described in 4 patients with proven causes of obstruction. Widening of the narrow gutter between the mylohyoid and hyoglossus muscles in one scan level is a prominent feature. An intra- or extraglandular duct diameter of 3 mm or more indicates possible obstruction, and the CT images should be scrutinized to reveal the cause.
authors.affiliation: Department of Radiology, Rikshospitalet, University of Oslo, Norway.
authors.forename: S
authors.initials: S
authors.lastname: Aasen
authors.forename: A
authors.initials: A
authors.lastname: Kolbenstvedt
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013363:Submandibular Gland / Q000000981:diagnostic imaging*; D013364:Submandibular Gland Diseases / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed