This high-yield revision note on Salivary Gland Disorders: Sialolithiasis, Sjogren’s & Tumors covers everything examiners typically test under Oral Medicine — structured as quick-reference tables, clinical correlations, mnemonics and previous-year-style high-yield points. It's built for last-mile revision before NEET MDS, INI-CET MDS and INBDE, so you can scan it in minutes instead of re-reading a whole textbook chapter.
| Disorder | Feature | Key Point |
|---|---|---|
| Sialolithiasis | Stone formation, MOST COMMON in the submandibular gland (Wharton's duct) | ~80% of submandibular stones are radiopaque (vs mostly radiolucent parotid stones) - due to more alkaline, mucous, calcium-rich saliva and a longer, tortuous, upward duct course |
| Acute bacterial sialadenitis | Painful swelling, purulent discharge from the duct orifice on gland massage | Staphylococcus aureus is the most common causative organism; termed "surgical mumps" when occurring postoperatively in dehydrated patients |
| Mumps (viral parotitis) | Bilateral parotid swelling, earlobe displaced outward/upward | Caused by a paramyxovirus, generally self-limiting |
| Sjogren's syndrome | Xerostomia (dry mouth) + keratoconjunctivitis sicca (dry eyes), ± an associated autoimmune disease (secondary form) | Anti-Ro/SSA and Anti-La/SSB antibodies; labial minor salivary gland biopsy (focus score) used for diagnosis |
| Pleomorphic adenoma | MOST COMMON salivary gland tumor overall, most often in the parotid | Benign but has malignant potential if left untreated long-term; risk of recurrence if the capsule is breached during surgical removal |
| Mucoepidermoid carcinoma | MOST COMMON malignant salivary gland tumor overall | Most common in the parotid; also the most common malignant tumor of minor salivary glands |
| Adenoid cystic carcinoma | Characteristic perineural invasion | "Swiss cheese"/cribriform histologic pattern; slow but relentless spread along nerves |
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