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Chronic Sialadenitis

Recurrent or persistent inflammation of major salivary glands (parotid, submandibular, sublingual) caused by ductal obstruction, autoimmune disease (IgG4-related, Sjögren), or radiation, leading to glandular fibrosis, ductal ectasia and risk of acute exacerbations.

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our KBB (Kulak Burun Boğaz) department. Book Appointment →

What is Chronic Sialadenitis?

Chronic sialadenitis is a long-standing inflammatory condition of the major salivary glands (most commonly the submandibular gland and parotid) characterized by recurrent painful glandular swellings, progressive parenchymal fibrosis, ductal ectasia and acinar atrophy. It evolves from incomplete resolution of acute sialadenitis or as a primary disorder driven by ductal pathology or systemic disease.

Etiology spans obstructive (sialolithiasis, ductal stricture, plug, foreign body), autoimmune (Sjögren syndrome, IgG4-related sclerosing sialadenitis—Küttner tumor of submandibular, Mikulicz disease), juvenile recurrent parotitis, post-radiation, and granulomatous (tuberculosis, sarcoidosis, actinomycosis). Histopathology shows lymphocytic infiltrate, periductal fibrosis, acinar atrophy and ductal dilatation.

Modern management emphasizes gland preservation: sialendoscopy (1–1.6 mm semi-rigid endoscope) for diagnosis and intervention—stone fragmentation (laser, basket extraction, intracorporeal lithotripsy), ductal dilation, intraductal corticosteroid lavage; medical therapy with sialagogues (sour candy, pilocarpine), warm massage, hydration, antibiotics for acute flares, and rituximab/B-cell depletion for IgG4-RD; surgery (gland excision) only for refractory disease.

Symptoms

Recurrent painful swelling of cheek or under jaw, especially with meals (mealtime syndrome)
Foul taste, salty discharge, pus from Stensen or Wharton duct
Xerostomia, mucosal dryness, dental caries
Cervical lymphadenopathy
Slowly enlarging, firm gland between flares
Trismus or facial nerve dysfunction in advanced parotid disease
Bilateral parotid swelling in Sjögren or sarcoidosis

Risk Factors

Sialolithiasis (especially submandibular—Wharton duct stones)
Ductal stricture from prior trauma, instrumentation, or radiation
Sjögren syndrome (anti-Ro/SSA, anti-La/SSB)
IgG4-related disease (elevated serum IgG4, plasma cell infiltrate)
Dehydration, anticholinergic medications, head-and-neck radiotherapy (RAI for thyroid cancer)
Recurrent juvenile parotitis (JRP) genetic predisposition
Smoking, poor oral hygiene, immunosuppression

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Recurrent painful gland swelling, especially with eating
  • Persistent dry mouth, dental decay, eye dryness (Sjögren)
  • Discharge or foul taste from inside cheek or under tongue
  • Acute fever, redness, fluctuant abscess (acute exacerbation)
  • Facial weakness or numbness with parotid swelling (rule out tumor)
  • Bilateral persistent gland enlargement
  • Failure to respond to conservative measures or antibiotics

Treatment Methods

01
High-resolution ultrasound first line; MR sialography or contrast CT for stones, strictures, autoimmune patterns; minor salivary gland biopsy for Sjögren, IgG4 staining for IgG4-RD
02
Conservative: hydration, warm gland massage, sialagogues (sour candy, pilocarpine 5 mg QID), bland diet, smoking cessation
03
Antibiotics for acute exacerbation: amoxicillin/clavulanate or clindamycin 7–10 days; cover MRSA if recurrent
04
Sialendoscopy diagnostic + therapeutic: stone retrieval (basket, laser), ductoplasty, intraductal triamcinolone lavage, dilation of strictures
05
Targeted therapy for autoimmune cause: rituximab in IgG4-RD, hydroxychloroquine and DMARD in Sjögren
06
Botulinum toxin injection for refractory salivary leak or post-irradiation flares
07
Gland excision (submandibular gland excision or parotidectomy with facial nerve preservation) only when conservative and minimally invasive measures fail

Which Department to Visit?

You can visit our KBB (Kulak Burun Boğaz) department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.