salivary gland ultrasound

The large parotid gland of the mouth has three pairs of parotid glands, submandibular glands, and sublingual glands. There are many small mucous glands, which are distributed in mucous membranes such as lips, cheeks, tongues and sputum. The parotid B-ultrasound examination uses B-ultrasound to examine the patient's parotid gland, which is often used to diagnose parotid gland disorders. Parotid gland, no swollen nodules in the neck. There was no expansion of the catheter in the parotid gland, and the movement was normal, and there was no abnormal echo in the catheter. Basic Information Specialist Category: Oral Examination Category: Ultrasound Applicable gender: whether men and women apply fasting: not fasting Tips: If the hair or beard is more likely to interfere with ultrasound penetration, it should be removed before the examination. Normal value Parotid gland, no swollen nodules in the neck. There was no expansion of the catheter in the parotid gland, and the movement was normal, and there was no abnormal echo in the catheter. Clinical significance Abnormal result 1. Parotid gland enlargement or atrophy (if there are nodules in the parotid gland, it should be examined in the left or right lobe; it is single or multiple.) 2, the parotid nodules are cystic or solid. 3. Whether the boundary of the parotid nodules is smooth, the capsule is intact, the internal echo is strong or weak, and there are no calcified nodules. 4. There are swollen lymph nodes in the neck. 5, if there is a color Doppler ultrasound, blood flow should also be observed for clinical reference. 6. The state of the catheter in the parotid gland expands, the movement is abnormal, and there is abnormal echo in the catheter. Need to check the crowd: for benign enlargement of the parotid gland, inflammation, or a mixed diagnosis of adenoma, adenoma and adenocarcinoma. Precautions 1. Taboo before examination: If the hair or beard is more likely to interfere with ultrasound penetration, it should be removed before the examination. 2, pay attention to the inspection: the position should be supine. Inspection process No special preparation is required before the parotid gland examination. The sputum gland is examined by applying the 7.5-10MHz linear array probe directly to the longitudinal, transverse and oblique sections. 1. When the parotid gland is examined, the probe should be placed on the skin. It should not be pressurized, so as not to change the shape and position of the lump. Especially when examining the blood flow in the lump, the pressure will affect the display of small blood vessels. 2, the inspection should pay attention to the inspection and comparison of the glands on both sides, pay attention to the principle of comparison, can improve the diagnostic compliance rate. 3. When checking, in addition to the gland and the catheter itself, attention should also be paid to the state of adjacent arteries, muscles, bones, etc. 4, the position of the sublingual gland is deep, the normal sublingual gland ultrasound is not easy to show, when the tumor is enlarged or occurs, the ultrasound is easy to find. Normal left and right sublingual glands can be connected together in a horseshoe shape. Not suitable for the crowd No taboos. Adverse reactions and risks No complications.