Acute bacterial sinusitis in children is diagnosed on the basis of the history, with the use of the criteria. Imaging studies (plain-film radiography, computed tomography [CT], magnetic resonance imaging [MRI], and ultrasonography) show signs of sinus inflammation but are not recommended in patients with uncomplicated infection, given the low specificity of these studies.
Clinical Criteria for the Diagnosis of Acute Bacterial Sinusitis
- Nasal congestion, rhinorrhea, or cough
- >/=10 Days’ duration without improvement
- Temperature >/=38.5°C for 3–4 days
- Purulent rhinorrhea for 3–4 days
- Return of symptoms after initial resolution
- New or recurrent fever, increase in rhinorrhea, or increase in cough