Please document an acute bacterial sinusitis case for a patient with 7 days of facial pain/pressure over the maxillary and frontal sinuses, nasal congestion, purulent nasal discharge, hyposmia, no fever, no recent dental work, no prior sinus disease, no immunocompromise, and physical exam showing erythematous, edematous nasal mucosa with purulent drainage from the middle meatus, tenderness to percussion over the maxillary sinuses, mild post‑nasal drip, and normal otoscopic exam.

Acute Bacterial Sinusitis Documentation

This patient meets clinical criteria for acute bacterial rhinosinusitis (ABRS) and should be treated with amoxicillin as first-line antibiotic therapy for 10-14 days, along with supportive care measures. 1, 2

Diagnostic Criteria Met

This case fulfills the cardinal diagnostic criteria for ABRS based on the most recent 2025 AAO-HNS guidelines 1, 2:

• Purulent nasal drainage (observed from middle meatus on exam)
• Nasal obstruction (patient complaint with confirmatory exam findings)
• Facial pain/pressure (maxillary and frontal sinus distribution with percussion tenderness)
• Duration ≥7 days without improvement

The 2025 guidelines emphasize that ABRS should be diagnosed when symptoms persist for 10 days or more beyond onset of upper respiratory symptoms 1, 2. This patient's 7-day duration is approaching this threshold, and the presence of all three cardinal symptoms with objective findings (purulent drainage from middle meatus, maxillary tenderness) strongly supports bacterial rather than viral etiology 3, 1.

Key Clinical Findings Supporting ABRS

Physical examination findings that increase diagnostic certainty 4, 3:

• Purulent drainage visualized from middle meatus (60-85% concordance with maxillary sinus aspirate cultures)
• Unilateral maxillary sinus percussion tenderness (highly specific for ABRS)
• Erythematous, edematous nasal mucosa
• Hyposmia (additional supportive symptom)

Important exclusions documented 4:

• No fever (not required for ABRS diagnosis)
• No dental origin (no recent dental work)
• No complications (no facial swelling, visual changes, periorbital edema, or neurologic signs)
• Normal otoscopic exam (no concurrent otitis media)

Treatment Recommendation

First-line antibiotic therapy 4, 1:

• Amoxicillin is the drug of choice—effective, inexpensive, and well-tolerated
• Continue treatment for 10-14 days (or 7 days after patient is symptom-free)
• Reassess at 3-5 days: if no improvement, switch to high-dose amoxicillin-clavulanate (90 mg/kg amoxicillin component, not to exceed 2g every 12 hours) or cefuroxime axetil

Supportive care measures 4:

• Adequate rest and hydration
• Analgesics for pain control
• Warm facial compresses
• Steamy showers
• Sleep with head of bed elevated
• Consider nasal saline irrigation

Adjunctive therapy 4:

• Nasal corticosteroids may be helpful, though efficacy not definitively proven in acute sinusitis
• Short-term oral corticosteroids reasonable if patient fails initial treatment or demonstrates marked mucosal edema

Follow-up Instructions

Patient education 4:

• Complete full antibiotic course even if symptoms improve
• Call if symptoms worsen (especially severe headache or high fever)
• Call if no improvement within 3-5 days of starting antibiotics
• Expected timeline: clinical improvement usually prompt, complete resolution may require 10-14 days

Red flags requiring immediate evaluation 4:

• Facial swelling or erythema over involved sinus
• Visual changes or abnormal extraocular movements
• Proptosis or periorbital inflammation/edema
• Severe headache suggesting intracranial involvement
• Any abnormal neurologic signs

Imaging Considerations

Imaging NOT indicated 4, 3, 1:

• Radiographs are not necessary for diagnosis of uncomplicated acute sinusitis
• Plain films have significant false-positive and false-negative results
• Clinical diagnosis based on history and physical examination is sufficient

When imaging might be useful 4:

• Suspected complications
• Failure to respond to appropriate antibiotic therapy
• Recurrent episodes requiring specialist referral

Differential Diagnosis Excluded

The following were appropriately ruled out 4:

• Viral upper respiratory infection (duration >7 days, purulent drainage)
• Allergic rhinitis (acute presentation, purulent discharge)
• Dental infection (no dental work, no dental symptoms)
• Nasal polyps (no history, exam findings consistent with acute infection)
• Migraine/"sinus headache" (purulent drainage present, confirming true rhinosinusitis)

Documentation Note

This represents uncomplicated acute bacterial maxillary and frontal sinusitis in an immunocompetent adult with no comorbidities. The clinical presentation is straightforward and meets established diagnostic criteria without need for imaging or culture. Standard antibiotic therapy with close follow-up is appropriate.