Other forms of aspergillosis:🌿 Allergic Fungal Rhinosinusitis (AFRS), A Complete Patient Guide

👃 What Is AFRS?

Allergic Fungal Rhinosinusitis (AFRS) is a rare, non-invasive allergic condition affecting the sinuses. It occurs when a person develops a strong allergic reaction to fungal spores — most often Aspergillus or other environmental moulds.

This allergic reaction causes:

• Chronic sinus inflammation

• Nasal polyps

• Thick, sticky mucus (called allergic mucin)

• Blocked sinus drainage

• In some cases, bone changes due to pressure from the build-up

Importantly, the fungus does not invade tissues, unlike more serious forms of aspergillosis.

🧬 AFRS and ABPA: Similar Diseases in Different Places

AFRS is very similar in nature to Allergic Bronchopulmonary Aspergillosis (ABPA), which affects the lungs.

🧠 In short:
AFRS is to the sinuses what ABPA is to the lungs — both are allergic responses to inhaled fungal spores.
In fact, some patients may have both conditions if fungal sensitivity affects multiple airways.

📉 How Common Is AFRS?

AFRS is uncommon, but may be underdiagnosed. It occurs mostly in people with long-standing sinus problems or fungal allergies.

In the UK, AFRS is less common than in tropical areas — but awareness is growing.

🛑 Why Is It Often Missed?

• Looks just like chronic rhinosinusitis with nasal polyps (CRSwNP)

• Most patients have symptoms like blocked nose, facial pressure, and mucus

• Doctors may treat these as routine infections without testing for fungal allergy

• Diagnosis requires ENT, allergy testing, imaging, and often surgery

🧬 Who’s at Risk?

People most at risk of AFRS typically:

• Have asthma, nasal polyps, or severe allergic rhinitis

• Experience long-term or recurring sinus infections

• Have elevated IgE levels or known allergies to fungi

• Live in damp or mould-prone environments

• May have other fungal allergic conditions, including ABPA

🧪 How Is AFRS Diagnosed?

Diagnosis is based on the Bent and Kuhn criteria, which include:

1. Chronic rhinosinusitis with nasal polyps

2. Characteristic "allergic mucin" seen on CT or during surgery

3. Positive fungal test (PCR or culture)

4. Evidence of IgE-mediated allergy (skin test or blood test)

5. CT scan showing sinus opacification, expansion, or bone thinning

A diagnosis is usually made by an ENT specialist, sometimes with support from allergists and microbiologists.

💊 Treatment and Management in 2025

1. Endoscopic Sinus Surgery (ESS)

• Clears out mucin and polyps

• Restores drainage and reduces symptoms

• Often the first step in diagnosis and treatment

2. Nasal Corticosteroids

• Long-term sprays or rinses to keep inflammation down

3. Short Courses of Oral Steroids

• Reduce inflammation after surgery or during flare-ups

4. Biologic Medications

• For recurrent or severe cases:

  • Anti-IgE (omalizumab)

  • Anti-IL-5 (mepolizumab, benralizumab)

  • Anti-IL-4/IL-13 (dupilumab)

5. Antifungals?

• Not usually needed

• Oral antifungals have not consistently helped in trials

🔁 Will It Come Back?

AFRS can recur, especially if polyps return or inflammation flares up. Most patients need ongoing care from an ENT team and occasional follow-up imaging or treatment adjustments.

✅ Key Takeaways

• AFRS is a rare, allergic form of sinus disease caused by hypersensitivity to fungi like Aspergillus.

• It shares similarities with ABPA, which affects the lungs.

• It is non-invasive, but can be severe and persistent without treatment.

• Diagnosis requires a combination of ENT evaluation, allergy testing, and imaging.

• Most people improve with surgery, nasal steroids, and in some cases, biologic therapy.

by GAtherton

👁️ Other forms of Aspergillosis: Aspergillus Endophthalmitis, A Rare Eye Infection

🧐 What Is It?

Aspergillus endophthalmitis is a severe fungal infection that affects the inside of the eye — specifically the vitreous (gel) or retina — caused by Aspergillus. It can lead to:

• Red, painful eye

• Blurred or lost vision

• Eye inflammation, sometimes with “filamentous” fungal growth on the lens if post-surgery

• Both exogenous (from cataract surgery or injury) and endogenous (spread through the blood, often in immunocompromised patients) forms exist

📉 How Rare Is It?

• Aspergillus causes fewer than 1% of postoperative eye infections

• Even among fungal cases, it’s a leading but still uncommon cause

🧬 Who Is at Risk?

• Immunocompromised individuals (e.g., transplant, high-dose steroids, cancer infusion, diabetes, HIV)

• Post-operative or post-trauma eye patients, especially cataract surgery

• IV drug users, or people with systemic aspergillosis

Despite these risk factors, it remains an uncommon complication.

🩺 Symptoms

• Eye pain and redness

• Blurry or reduced vision

• Sensation of “floaters” or shadows

• Often unilateral, but can be bilateral, especially after surgery or in immunosuppressed patients

🧪 Diagnosis

• Eye examination by an ophthalmologist with slit lamp or ultrasound

• Sampling of vitreous or aqueous fluid for culture, PCR, or galactomannan tests

💊 Current Treatment Guidelines

Based on 2022–2025 evidence:

1. Prompt vitrectomy (surgical removal of infected gel) improves outcomes Intravitreal voriconazole injections (directly into the eye) enhance recovery

2. Systemic antifungals: voriconazole or isavuconazole are preferred; amphotericin B or combination therapy may be used if resistant

3. Prognosis: Vision ≥20/400 in <50% of cases; globe preserved in ~66% of eyes

🧭 Summary for Patients

• Aspergillus endophthalmitis is extremely rare — it affects a tiny fraction of aspergillosis patients.

• It’s often linked to eye surgeries, trauma, or severe immunosuppression.

• Symptoms include pain, redness, floaters, and vision loss — if any appear, seek urgent ophthalmology care.

• Best outcomes result from early vitrectomy, intravitreal antifungals, and systemic treatment.

✅ Bottom Line

While Aspergillus can affect many parts of the body, eye infections (endophthalmitis) are among the rarest forms. Most patients with respiratory forms (ABPA, CPA, or aspergilloma) will never develop this.
But awareness matters — especially for those who are immunocompromised or have had eye surgery. With swift, specialist treatment, many eyes can be saved, though vision recovery is often limited.

by GAtherton