SIALOGRAPHY

Sialography is a radiographic examination of salivary glands by injecting the contrast media into ductal systems. The salivary glands are located each side of the face. The salivary glands release saliva through the salivary ducts into the mouth. The saliva is important for digestion and general oral health. It is mainly used to demonstrate the parotid gland and submandibular gland. This procedure is done to evaluate the salivary gland obstruction, calculi, strictures, mass lesions, penetrating trauma and chronic inflammatory disease. This procedure should not done in some cases like allergy to iodine and sialadenitis. The procedure is done either with intracath technique or lacrimal cannula technique. This examination is done by introducing a very thin tube into the opening of the duct. The contrast media should be injected until the patient feels discomfort and three images are taken namely-AP, Lateral and lateral oblique. During the procedure, if required, ask the patient to drink the lemon juice as it increases the volume of saliva in the mouth. CT scan and MRI have largely replaced this exam. After the procedure, some complications may occur due to techniques and contrast media. To avoid this, the patient have to take some precautions after the procedure like ensure the patient is well hydrated, if required, remove the false teeth and after the exam is over, the contrast will drain into the mouth. The doctor may instruct to massage the salivary gland which will aid in draining the dye. The dye may taste bitter, but it is safe to swallow dye.

 

By -ASSISTANT PROFESSOR – Ms. Prachi Vishnoi
Department -RADIOLOGY
UCBMSH Magazine – (YouthRainBow)
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