الفهرس 
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Abstract
Introduction: Neoplasms of the salivary glands constitute less than 3 % of all tumors of the body, yet many people have an illness related to the salivary glands at some time in their lives. The first critical step in evaluating a salivary gland mass is to determine whether it is painful or not. While painful masses may be produced by obstructive or inflammatory disease, the classic painless mass in the salivary gland is usually due to neoplasms, cysts, or lymph node . Aim of the work: The aim of the work is to evaluate the role of ultrasonography and computed tomograpgy in the assessment of salivary gland masses. Methods: Twenty two patients with salivary gland masses underwent both ultrasound and computed tomography examinations. The final diagnosis was made by pathology (either true cut biopsy or surgical specimen). Results: Ultrasound was easy, cheap, rapid, painless, and noninvasive. It was very useful in detecting site of different lesions especially those affecting the superficial lobe of the parotid gland. It was accurate in assessment of mass borders and detecting of multiple lesions. Sometimes, it allowed to suggest the nature of the tumor. Color Doppler augment the role of grey scale US. Computed tomography was usefulin detecting deep lobe involvment in cases of parotid gland affection. It was more accurate in staging of tumors and detecting full bounderies (in large masses). Twophase helical CT showed characteristic patternof enhancement in cases of pleomorphic adenomas and Warthin?s tumor. Conclusions: US is the intial method of assessment of salivary gland masses. US can guide for further investigation. Color Doppler augment the role og grey scale US. CT is more accurate in detecting the stage of the tumor and assessment of deep and large masses. CT predict the nature of the mass more accurately than US does.