Infectious mononucleosis presenting as a parotid mass with associated facial nerve palsy

P A Johnson1, C Avery

  • 1Department of Oral and Maxillofacial Surgery, Central Outpatients Department, North Staffs Hospital Centre, Stroke-on-Trent, England.

Insights

Infectious mononucleosis can mimic malignant neoplasms, presenting as parotid lymphadenopathy and facial nerve palsy. This case highlights the importance of considering viral infections in differential diagnoses.

Area of Science:

  • Otolaryngology
  • Neurology
  • Infectious Diseases

Background:

  • Facial nerve palsy and parotid lymphadenopathy can present diagnostic challenges.
  • Malignant neoplasms are often considered in the differential diagnosis of these conditions.
  • Infectious mononucleosis is a common viral illness with varied presentations.

Observation:

  • A case of infectious mononucleosis presenting with parotid lymphadenopathy and partial facial nerve palsy is detailed.
  • The clinical presentation mimicked a malignant neoplasm, causing diagnostic confusion.
  • The association between infectious mononucleosis and facial nerve palsy is noted.

Findings:

  • Infectious mononucleosis should be considered in the differential diagnosis of parotid lymphadenopathy and facial nerve palsy.
  • Viral infections, including infectious mononucleosis, can lead to facial nerve palsy.
  • Diagnostic confusion with malignant neoplasms is a significant consideration.

Implications:

  • This case underscores the need for a broad differential diagnosis in patients with parotid swelling and facial nerve weakness.
  • Early recognition of infectious mononucleosis can prevent unnecessary invasive procedures.
  • Further review of literature on viral causes of facial nerve palsy is warranted.

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