Submandibular sialadenitis
ICD-10 K11.2 · ICD-11 DA04.2.3

Acute Onset of Submandibular Gland Pain and Swelling with Extreme Localized Tenderness and Purulent Discharge

This protocol addresses the specific clinical scenario of acute submandibular sialadenitis presenting with rapid-onset gland swelling, induration, and a defining sign of active infection — pus expressible at the intraoral duct orifice.

Clinical scenario

The patient presents with acute onset of pain and swelling of the submandibular gland. On examination: induration, edema, and extreme localized tenderness of the gland are present. Massage of the gland expresses purulence (pus) from the intraoral duct orifice — a hallmark finding that guides management.

Treatment approach (partial overview)

Management combines empiric antimicrobial therapy targeting the characteristic organisms of this infection with supportive measures aimed at restoring salivary flow. The full selection criteria, sequencing, and adjunctive steps are in the complete protocol.

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References

  1. Patients with acute sialadenitis typically present with acute onset of pain and swelling of the affected gland.
  2. Physical examination may reveal induration, edema, and extreme localized tenderness.
  3. Massage of the gland may express pus from the respective intra-oral orifice.
  4. Empiric antimicrobial therapy is initially directed at gram-positive and anaerobic organisms, which are often penicillin-resistant, so augmented penicillin that contains beta-lactamase inhibitors (e.g., amoxicillin-clavulanate [Augmentin]) are recommended.
  5. This includes stimulation of salivary flow by application of warm compresses, administration of sialagogues such as lemon drops or vitamin C lozenges, hydration, salivary gland massage, and oral hygiene.
  6. Culture-directed therapy is administered, if possible.
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