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Other forms of aspergillosis: Aspergillus Pneumonia (Community-Acquired Aspergillus Lung Infection)

What is it?

Aspergillus pneumonia is a rare but serious lung infection caused by breathing in spores of the Aspergillus mould (most often Aspergillus fumigatus). Unlike allergic conditions such as Allergic Bronchopulmonary Aspergillosis (ABPA) or Aspergillus bronchitis, which affect the airways, Aspergillus pneumonia occurs when the fungus actually invades lung tissue. This makes it a more dangerous condition.

How do people catch it?

Most cases are acquired in the community (outside hospital).
You may be at higher risk if you have:

• A weakened immune system (chemotherapy, transplant, high-dose steroids, uncontrolled diabetes).

• Chronic lung disease such as COPD or emphysema.

• A very heavy exposure to fungal spores (compost heaps, rotting bark, mulch, or farming dust).

Almost all cases are due to Aspergillus fumigatus, though other species like A. flavus have also been reported.

How common is it?

• Aspergillus pneumonia is uncommon, despite Aspergillus spores being everywhere in the environment.

• It is most often seen in people with weak immune defences, long-term lung disease, or very high exposure.

• Because it often looks like ordinary bacterial or viral pneumonia, it can be missed or diagnosed late.

Symptoms

The illness may start like a regular chest infection:

• Cough (dry or with sputum)

• Shortness of breath

• Fever or chills

• Chest pain

• Fatigue

• Sometimes coughing up blood

It may progress:

• Slowly over weeks, with cavities (holes) forming in the lungs.

• Very quickly, especially after flu, COVID-19, or high spore exposure.

How does it differ from other Aspergillus conditions?

👉 In short:

• Pneumonia = infection inside lung tissue (dangerous, urgent).

• ABPA = allergic reaction in the lungs.

• Bronchitis = long-term airway infection.

Is it a type of invasive aspergillosis?

Yes. Aspergillus pneumonia is considered a form of invasive aspergillosis because the fungus invades lung tissue:

• Acute/severe form: fast, aggressive illness in very vulnerable people (immunocompromised, post-viral, heavy spore exposure).

• Subacute or “necrotising” form: slower, smouldering infection in people with COPD, diabetes, or long-term steroids, often with cavities.

👉 It is not mild like ABPA or bronchitis — it requires antifungal treatment.

Diagnosis

Doctors may use:

• Chest X-ray or CT scan – patches, cavities, or diffuse shadowing.

• Sputum or bronchoscopy samples – to detect Aspergillus in culture or under the microscope.

• Blood tests – for Aspergillus antibodies, or sometimes antigen (galactomannan).

Treatment

• Antifungal medicines are the main treatment (voriconazole is most common; sometimes itraconazole or posaconazole).

• Corticosteroids may be added in severe “pneumonitis-type” illness with overwhelming inflammation.

If treatment begins early, many people respond well. If diagnosis is delayed, the illness can progress rapidly and be life-threatening.

Outlook

• Without antifungal treatment, Aspergillus pneumonia can be fatal.

• With modern antifungal drugs, survival and recovery are possible.

• Some people may develop long-term lung damage, even after successful treatment.

Key message for patients

If you have sudden worsening cough, fever, or chest symptoms that don’t improve with antibiotics — especially if you have COPD, are on steroids, or have had heavy spore exposure — ask your doctor whether Aspergillus pneumonia should be considered. Early diagnosis and treatment make the best outcomes possible.

by GAtherton

Other types of aspergillosis: Allergic Fungal Rhinosinusitis (AFRS)

(Also called Allergic Fungal Sinusitis, Allergic Aspergillus Sinusitis, Allergic Aspergillosis of the sinuses)

What is AFRS?

AFRS is a type of chronic sinus disease caused by an allergic reaction to fungi such as Aspergillus. It mainly affects adolescents and young adults, especially in warm and humid climates. AFRS accounts for about 5–10% of all cases of chronic sinusitis.

Unlike some other forms of fungal sinus disease, AFRS occurs in people with a normal immune system. It is not the same as an invasive fungal infection.

Symptoms

Common symptoms include:

• Blocked or congested nose

• Nasal polyps (soft swellings inside the nose)

• Post-nasal drip (mucus running down the back of the throat)

• Loss of smell or taste

• Recurrent sinus infections

• Headache or facial pressure

Pain is not typical — if severe pain is present, bacterial sinusitis may also be involved. Some people may have more dramatic problems such as worsening eye symptoms, changes in facial appearance, or very severe nasal blockage.

Diagnosis

Doctors may use a combination of:

• CT scans showing thickened sinuses with “allergic mucin” (thick mucus mixed with fungal debris).

• Nasal endoscopy to look for polyps and mucus.

• Laboratory tests for raised IgE (allergy antibody) or specific IgE against fungi.

• Biopsy or mucus samples, which sometimes show fungal filaments (though not always).

The diagnosis is sometimes difficult, as not every laboratory can reliably detect fungi in mucus.

Causes

AFRS is caused by an overactive immune response to fungi in the sinuses.

• The most common fungi are Aspergillus (especially A. flavus), Alternaria, and Curvularia.

• People with allergies, asthma, or nasal polyps are at higher risk.

Treatment

Treatment usually combines surgery and medical therapy.

• Surgery: Performed using an endoscope through the nose. The aims are to:

  1. Remove thick mucus and fungal debris.

  2. Improve drainage and ventilation of the sinuses.

  3. Allow future cleaning and access if disease comes back.

• Steroids: Corticosteroids are used to control inflammation and prevent relapse. These may be:

  • Tablets (short or long courses depending on severity)

  • Nasal steroid sprays or rinses (usually long-term)

• Other treatments:

  • Antifungal medicines are not clearly proven to help but may be tried in some cases.

  • Immunotherapy (allergy desensitisation) may help reduce recurrence.

  • Antibiotics such as azithromycin are occasionally added if bacteria are thought to play a role.

Despite treatment, recurrence is common. Many patients need repeat surgery or ongoing medical therapy.

Link with ABPA (Allergic Bronchopulmonary Aspergillosis)

AFRS affects the sinuses, while ABPA affects the lungs, but both are caused by an allergic reaction to Aspergillus and have many similarities.

• Some patients develop both AFRS and ABPA, sometimes called “sinobronchial allergic mycosis syndrome.”

• If you have AFRS and also develop asthma, persistent cough, or changes on a lung scan, your doctor may check for ABPA.

• Likewise, people with ABPA and severe sinus symptoms may be assessed for AFRS.

• If there is concern, your doctors may refer you to the National Aspergillosis Centre (NAC) in Manchester for specialist advice.

Key points for patients

• AFRS is not a dangerous invasive infection, but it is long-lasting and tends to come back.

• Surgery plus steroid treatment is the main approach.

• Ongoing follow-up is important because relapse is common.

• AFRS and ABPA can sometimes occur together, so chest symptoms should always be discussed with your doctor.

by GAtherton

Other forms of aspergillosis: Chronic Aspergillus Sinusitis

(Chronic invasive and granulomatous forms)

Chronic sinus problems are very common, but in a small number of people they are caused by fungal infection, especially Aspergillus. This type of infection is different from the usual bacterial sinusitis and needs different treatment.

What is chronic Aspergillus sinusitis?

• Chronic rhinosinusitis (CRS) is long-term inflammation of the sinuses (lasting more than 12 weeks).

• In about 6–12% of CRS cases, fungi are the cause — with Aspergillus being the most common.

• There are two important invasive forms that are rare but serious:

  • Chronic invasive Aspergillus sinusitis – the fungus grows slowly into the lining of the sinuses and nearby tissues.

  • Chronic granulomatous Aspergillus sinusitis – the immune system forms a hard granuloma (lump of immune cells and fungus), usually caused by Aspergillus flavus.

These conditions progress slowly but can cause long-term damage if not treated.

Who gets it?

• Chronic invasive Aspergillus sinusitis is more common in Western countries and Japan.

• Granulomatous sinusitis is more often seen in parts of Africa, South Asia (India, Pakistan), the Middle East, and occasionally the southern United States.

• People at risk include:

  • Those with diabetes, on long-term steroids, or with HIV infection.

  • Sometimes people with no obvious immune problems can still develop it.

• Aspergillus fumigatus usually causes chronic invasive sinusitis.

• Aspergillus flavus is the main cause of granulomatous sinusitis.

Symptoms

Because these forms progress slowly, symptoms are often missed or mistaken for “ordinary sinus problems.” They may include:

• Blocked or congested nose that doesn’t improve with usual treatments

• Facial pain or pressure, especially around the eyes, cheeks, or forehead

• Headaches

• Nasal discharge, sometimes blood-stained

• Bleeding from the nose (epistaxis)

• Facial swelling or numbness

• Bulging eye (proptosis) or reduced vision if the infection spreads to the orbit

• Rarely: brain involvement (abscess, meningitis, stroke-like symptoms)

Granulomatous sinusitis often causes a slowly enlarging mass in the nose, cheek, or orbit, and may be mistaken for a tumour.

How is it diagnosed?

• Scans (CT or MRI): show a mass in the sinuses, sometimes with bone damage. MRI is useful if the eye or brain are involved.

• Endoscopy and biopsy: tissue samples are taken from the sinus lining.

• Laboratory tests:

  • Special stains and fungal culture help identify Aspergillus.

  • Blood tests (Aspergillus IgG antibodies) can support the diagnosis.

• Diagnosis can be delayed because the condition is uncommon and mimics other sinus problems.

Treatment

Prompt treatment is essential to prevent serious complications. Management usually involves:

1. Surgery

   • To remove infected tissue and improve sinus drainage.

   • Surgery also allows biopsy to confirm diagnosis.

2. Antifungal medication

   • Long-term antifungal tablets (usually itraconazole or voriconazole).

   • Sometimes intravenous antifungals (e.g. amphotericin B or posaconazole) are used in severe cases.

   • Treatment usually lasts at least 6 months, often longer (sometimes up to a year).

3. Managing risk factors

   • Good control of diabetes.

   • Reducing or stopping steroid medicines if possible.

Outlook (prognosis)

• With early diagnosis and combined treatment (surgery + antifungals), many patients do well.

• Granulomatous sinusitis tends to relapse more often but generally has a better long-term outlook than invasive sinusitis.

• Regular follow-up is essential because recurrence is common.

  • Follow-up usually includes scans every few months and nasal endoscopy to check for regrowth.

  • Ongoing monitoring may be needed for up to 5 years.

Key points for patients

• Chronic Aspergillus sinusitis is rare, but important to recognise because it needs different treatment than ordinary sinus infections.

• Symptoms can mimic chronic sinusitis or even cancer, so biopsy and specialist review are essential.

• Surgery plus antifungal medication is the main treatment.

• Long-term follow-up is needed to monitor for relapse.

• If you have risk factors like diabetes or steroid use, controlling these is important.

✅ Summary:
Chronic invasive and granulomatous Aspergillus sinusitis are rare but serious fungal infections of the sinuses. They progress slowly, can cause damage to the eyes or brain if untreated, and are sometimes mistaken for tumours. With specialist care, surgery, antifungal therapy, and long-term follow-up, most patients can achieve good control of the disease.

by GAtherton