Quiz 24



  1. Name the examination.
  2. List three indications for this examination.
  3. Where is the orifice of this duct? What would you do if you cannot see the opening during the examination?
  4. Name the labelled structures.


  1. Submandibular sialography in lateral projection
  2. Indications for this examination include pain, suspected calculus, xerostomia and swelling
  3. Orifice of the submandibular duct is at the base of the frenulum of the tongue. If the duct is not visible, a sialogogue (e.g. citric acid) is placed in the mouth to promote secretion of the gland and so render the orifice visible.
  4. The labelled structures:
    1. Cannula in the duct
    2. Submandibular (Wharton) duct
    3. Ductules
    4. Angle of mandible
Author: radhianahassan