The former is a duct usually caused by local trauma ( damage ), in the case of mucus extravasation phenomenon, and an obstructed or ruptured salivary duct ( parotid duct ) in the case of a mucus retention cyst.
12.
In addition, a sialogram, a special X-ray test, is performed to see if any blockage is present in the salivary gland ducts ( i . e . parotid duct ) and the amount of saliva that flows into the mouth.
13.
Also, a radiological procedure is available as a reliable and accurate test for SS . A contrast agent is injected into the parotid duct, which opens from the cheek into the vestibule of the mouth opposite the neck of the upper second molar tooth.
14.
The parotid gland is located in front of the ear, and it secretes its mostly serous saliva via the parotid duct ( Stenson duct ) into the mandible, and it drains its mixture of serous and mucous saliva via the submandibular duct ( Wharton duct ) into the mouth, usually opening in a punctum located in the floor of mouth.
