Fact-sheet: Juvenile recurrent parotidis


Updated on 11/12/2025 at 7:13 PM

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Definition

Rare pediatric condition typically presenting between 3 and 6 years of age, characterized by recurrent episodes of non-suppurative sialadenitis progressing to glandular dysfunction in 50-80% of cases.

Of multifactorial origin, an alteration in saliva composition leads to ascending superinfection followed by plasmacytic infiltration, resulting in destruction of the parotid parenchyma and formation of sialectasis.

Clinical features

Unilateral or bilateral parotid swelling, often asynchronous, which may be painful.

Possible associations with:

  • Sjögren syndrome
  • lymphoma
  • immunodeficiency (HIV)

Ultrasound

  • Multiple hypoechoic areas with vacuolization within the parotid parenchyma
  • Doppler hypovascularity during quiescent phase
  • Doppler hypervascularity during inflammatory flare

MRI

Sialo-MRI: characteristic sialectasis, best visualized on CISS sequences

Management

  • Acute phase: sialagogues, glandular massage, antibiotic therapy
  • Ductal lavage via sialography
  • Sialendoscopy for diagnostic and therapeutic purposes in the prevention of recurrence