What is the most common disease of salivary glands ?
Sialolithiasis is most common disease of larges salivary glands, accounting for approximately 50% of all major salivary gland pathology.
True or false : All of the salivary gland stones are visible on plain radiography.
Not all stones are radiopaque. Plain radiography is able to visualise only 80-90% of submandibular stones and approximately 60% of parotid duct stones, presumably due to differences in the composition of the secretion of the parent glands.
Severe enlargement of left parotid is seen with marked dilatation of Stensen's duct due to distal stone (22 mm). Fat stranding is also seen around the parotid.