What is the role of nasal cytology in the workup of mold-related allergic rhinitis and conjunctivitis?

Updated: Dec 02, 2020
  • Author: Shih-Wen Huang, MD; Chief Editor: Harumi Jyonouchi, MD  more...
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The presence of more than 10% of eosinophils in the cell population in the nasal secretion supports the diagnosis. Hansel staining is used to identify eosinophils. Eye swab results can be used to diagnose allergic conjunctivitis. If neutrophils are present in more than 90% of the cell population, bacterial infection should be considered.

Sinus images may depict sinusitis or adenoid hypertrophy.

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