الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
The salivary glands are exocrine glands that make, modify, and secrete saliva into the oral cavity. They are anatomically divided into two main types: the major salivary glands, which include the parotid, submandibular and sublingual glands, and minor salivary gland tissue is comprised of 800-1000 small salivary glands. Minor salivary gland tissue can be found anywhere along the aerodigestive tract, it is most concentrated along the buccal mucosa, labial mucosa, lingual mucosa, soft/hard palate, and floor of mouth. Inflammatory conditions are the most common pathology affecting the salivary glands. Historically, mumps has been the most frequent condition affecting the salivary glands. Inflammatory Conditions of the Salivary Glands contain Sialolithiasis and obstructive sialadenitis, Infective sialadenitis, Granulomatous disorders, Sjögren’s syndrome, Sialosis, Human immunodeficiency virus (HIV) sialopathy, Recurrent sialadenitis of childhood, Radiation-induced sialadenitis. Imaging is useful in identifying the masses of salivary glands and also in differentiating them from the masses/pathologies of adjacent cervical spaces, especially parapharyngeal, masticator, and submental spaces and mandibular lesions. Computed tomography (CT) imaging is useful in evaluating structures in adjacent to the salivary glands, assessing acute inflammatory processes and abscesses, cysts, mucoceles, and neoplasia. It displays both soft and hard tissues and little differences in soft tissue densities. It is easy, rapid and cheap compared to MRI. So, the aim of this study is to evaluate role of ultrasound and Computed tomography in differentiation between benign and malignant of salivary glands lesions. To elucidate our aim, this study was A cross sectional analytic study was conducted on 46 of either gender referred from the outpatient clinics of ENT, head and neck surgery and dentists at Radiology Department, Faculty of Medicine, Menoufia university during the period time from November 2021 to November 2022. All patients were subjected to: Full history taking including: name, age, Residence, family history of any disease. Full clinical examination: focusing on: Physical examination: including measurement of height, weight, blood pressure, Local examination: Inspection and palpation at site of the swelling. Ultrasound Technique: The major salivary glands are optimally examined by grayscale and Doppler US (color or power Doppler). Computed tomography protocol: Head and neck CT examination using a multi detector CT with the same acquisition parameters except the scan delays.