الفهرس 
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Abstract
Sialolithiasis is the most common benign cause of salivary gland swelling with a reported incidence 1 in 10000 to 1 in 30000.
The aim of this work was directed to study the value of combined MRI sialography and NCCT salivary glands in patients suspected of having salivary gland stones and improve their quality of care.
The current study was carried out on a sample size of 60 patients presenting with signs or symptoms suggestive of sialolithiasis, who were referred from ENT clinics to the radiodiagnosis department at Alexandria main University Hospital for further work up.
Prospective experimental study design was selected, All the patients were subjected to:
1- Thorough history taking.
2- MRI examination using 1.5-T MR imaging system. High resolution T2 3D DRIVE and Axial T2-weighted images were used.
3- Non-contrast CT.
4- Evaluation of imaging including, measurements of stone sizes, ductal diameters, and distances required by operating physicians.
5- Management feedback.
The patients’ age ranged from 10 to 67 years with a mean age of 35.67 ± 14.05 years. The largest group of patients were found in the fifth decade.
The patient distribution according to sex was 61.7% males and 38.3% females. Clinically, 98.3% cases were complaining of painful swelling of the affected gland and 51.7% were complaining of oral cavity dryness.
Salivary pathologies found in the included patients; 54 cases showing sialolithiasis. Two other cases Sjogren syndrome without stones. One case showed distal long segment parotid duct stricture. One case of each of granulomatous sialadenitis, and venous malformation. One case was complaining from right side parotid pain and swelling underwent diagnostic sialendoscopy that revealed no obstructing cause.
The current study showed that 42 (72.4%) patients had submandibular gland involvement, and 15 (25%) patients had parotid gland involvement while 1 (1.7%) case showed sublingual gland affection.
In the current study, the 54 sialolithiasis cases showed 98 stones on NCCT, 78 filling defects on MRI sialography and 93 stones were obtained postoperatively.
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