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What is Salivary gland stone most commonly associated with - and explain in detail?
(A) (Submandibular gland) (483 - S. Das 7th) (727 - Baily & Lake 26th)* Salivary stones are ore common in the submandibular saligand gland than in parotid gland.* Stones develop more frequently within the duct of the submandibular gland (Wharton's duct).* Main content is calcium and magnesium phosphate (same as tarter of tooth).* Painful swelling during meal is the most important symptoms.* 80% of submandibular stones are radio-opaque and can be identified on plain radiography.* Acute parotitis is a contraindicated for sialography.* Warthin's tumour is - An adenolymphoma of parotid (Papillary cystadenoma lvmphomatusum) gland.* Common in males, 5th to 1th decade, never turns malignant.* Show's "hot spot" in Tc99 pertechnate scan, other tumours of the parotid show 'cold spot'* Treatment - superficial parotidectomy.Godwin's tumour - Benign lymphoepithelial tumour of parotid gland.Ranula - is a retention cyst of minor salivary glands (Glands of Bandin and Nuhn).* Present as transluscent bluish, swelling in the floor of the mouth, lying one side of the midline.* Complete excision or marsupialization for large cyst.* Mixed tumours (pleomorphic adenoma) are most common in the parotid gland.