II. Definitions

  1. Nonallergic Rhinitis with Eosinophilia
    1. Subtype of Chronic Nonallergic Rhinitis characterized by nasal Eosinophilia

III. Epidemiology

  1. Perennial Non-allergic Rhinitis
  2. More common in adults
    1. May represent up to a third of Rhinitis cases

IV. Symptoms

  1. Congestion
  2. Rhinitis

V. Labs

  1. Allergy Testing (RAST or Skin Testing) negative
  2. Nasal secretion microscopy
    1. Nasal Eosinophilia and Mast Cell degranulation

VI. Differential Diagnosis

VII. Associated conditions: Triad

  1. Aspirin sensitivity
  2. Non-IgE-mediated Asthma
  3. Nasal Polyps

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