Last reviewed: November 2017
Last updated: November  2017

Summary

Definition

History and exam

Key diagnostic factors

  • symptoms <10 days (acute viral sinusitis)
  • symptoms >10 days but <4 weeks (acute bacterial sinusitis)
  • severe symptoms at onset (acute bacterial sinusitis)
  • symptoms that worsen after an initial improvement (acute bacterial sinusitis)
  • purulent nasal discharge
  • nasal obstruction
  • dental pain
  • facial pain/pressure

Other diagnostic factors

  • cough
  • myalgia
  • sore throat
  • hyposmia
  • oedematous turbinate
  • fever

Risk factors

  • viral upper respiratory tract infection
  • allergic rhinitis
  • GORD

Diagnostic investigations

Investigations to consider

  • nasal endoscopy
  • sinus culture
  • CT sinuses (non-contrast)
  • x-ray sinuses
  • MRI
  • lateral neck x-ray
Full details

Treatment algorithm

Contributors

Authors VIEW ALL

Melissa A. Pynnonen

Associate Professor

Director

Health Services Research

Department of Otolaryngology-Head and Neck Surgery

University of Michigan

Ann Arbor

MI

Disclosures

MAP declares that she has no competing interests.

Gordon H. Sun

Chief

Division of Otolaryngology and Ophthalmology

Rancho Los Amigos National Rehabilitation Center

Downey

CA

Disclosures

GHS is a writer for Medscape from WebMD.

Dr Melissa A. Pynnonen and Dr Gordon H. Sun would like to gratefully acknowledge Dr Joseph K. Han, a previous contributor to this monograph. JKH declares that he has no competing interests.

Peer reviewers VIEW ALL

Instructor of Otology and Laryngology

Harvard Medical School

Massachusetts Eye and Ear Infirmary

Department of Otolaryngology - Head and Neck Surgery

Boston

MA

Disclosures

BSB is a co-founder and equity shareholder in Luxxeal, Inc.

Assistant Professor/Consultant

Academic Medical Center

Amsterdam

The Netherlands

Disclosures

CG declares that he has no competing interests.

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