B44.2 Tonsillar aspergillosis

Name of the Condition

• Tonsillar aspergillosis

Summary

Tonsillar aspergillosis is a fungal infection of the tonsils caused by Aspergillus species. It typically presents as localized colonization or mild tissue involvement, though it can progress in immunocompromised individuals. The condition may manifest with throat symptoms and is often associated with underlying structural or immune vulnerabilities.

Causes

The infection is caused by Aspergillus species, ubiquitous environmental molds. Spores are inhaled or ingested, leading to colonization of the tonsillar tissue. In immunocompetent hosts, the fungus may remain localized, but in those with weakened immunity, it can invade deeper structures or spread.

Risk Factors

• Immunocompromised states, such as prolonged neutropenia, organ transplantation, or advanced HIV.
• Chronic oropharyngeal conditions, including recurrent tonsillitis or structural abnormalities.
• Long-term corticosteroid use or other immunosuppressive therapies.
• Environmental exposure to high concentrations of Aspergillus spores.
• Prior tonsillar surgery or trauma.

Symptoms

• Sore throat, difficulty swallowing, or throat discomfort.
• White or discolored patches on the tonsils.
• Mild fever or malaise.
• Swollen tonsils or cervical lymphadenopathy.
• Rarely, hemoptysis or systemic symptoms in severe cases.

Diagnosis

Diagnosis involves clinical evaluation of throat symptoms and visualization of tonsillar abnormalities. Laboratory testing, such as fungal cultures or histopathology of tonsillar tissue, confirms the presence of Aspergillus. Imaging may be used to assess for deeper tissue involvement or complications.

Treatment Options

Treatment depends on the severity and host immunity. Mild cases may resolve with supportive care, while antifungal medications (e.g., voriconazole) are used for invasive or persistent infections. Surgical intervention may be necessary for abscesses or structural complications. Underlying immune deficiencies should be addressed.

Prognosis and Follow-Up

Prognosis is generally favorable in immunocompetent individuals with localized disease. In immunocompromised patients, outcomes depend on immune recovery and timely treatment. Follow-up includes monitoring for symptom resolution and repeat testing if symptoms persist or worsen.

Complications

• Spread to adjacent structures, such as the pharynx or larynx.
• Systemic infection in severely immunocompromised hosts.
• Tonsillar abscess or airway obstruction.
• Chronic tonsillar inflammation or recurrent infection.

Lifestyle & Prevention

• Avoid exposure to high mold concentrations, especially in damp environments.
• Maintain good oral hygiene to reduce tonsillar irritation.
• Manage underlying conditions, such as diabetes or immunosuppression.
• Seek prompt treatment for recurrent throat infections.

When to Seek Professional Help

Consult a healthcare provider if symptoms persist beyond a few days, worsen, or include difficulty breathing, high fever, or severe throat pain. Immunocompromised individuals should seek care immediately for any new or unusual throat symptoms.

Tips for Medical Coders

Document the presence of tonsillar involvement and any associated symptoms or complications. Ensure clinical correlation with diagnostic findings, such as fungal cultures or imaging, to support the diagnosis. Code B44.2 is specific to tonsillar aspergillosis and should not be used for other sites of infection.