Mucormycosis

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Mucormycosis (also called zygomycosis or black fungus) is a rare but serious fungal infection. It is caused by mold spores found in the environment and can affect different parts of the body. The disease progresses quickly and is more dangerous for people with weakened immune systems or other health problems.

What it is
- Mucormycosis is an infection by molds in the order Mucorales.
- It most often affects the nose, sinuses, eyes, and brain, but it can also involve the lungs, stomach and intestines, skin, or spread throughout the body.
- The infection can cause tissue death (necrosis), which is why it is sometimes called “black fungus.”

Who gets it
- People with poorly controlled diabetes or diabetic ketoacidosis.
- People with weak immune systems, cancer, organ or kidney problems, or those taking immune-suppressing drugs or long-term steroids.
- Iron overload and some other medical conditions also raise the risk.
- It is not spread from person to person.
- During COVID-19, more cases were reported, especially in people treated with steroids or whohad diabetes.

Common signs and symptoms (by location)
- Nose and sinuses: runny nose, facial swelling and pain, fever, nasal congestion.
- Eyes and brain: eye swelling or pain, blurred vision, headache, facial numbness.
- Lungs: cough, chest pain, trouble breathing.
- Stomach or intestines: nausea, vomiting, abdominal pain.
- Skin: dark or purple patches, painful, red or black areas on the skin.
- If the infection spreads to the brain, mental changes or coma can occur.

How it is diagnosed
- No single blood test confirms it.
- A doctor usually takes a tissue sample (biopsy) and looks for characteristic mold under a microscope and in a culture.
- Imaging tests (like CT or MRI) help show how far the infection has spread.
- Diagnosis can be challenging because the appearance can resemble other infections.

Treatment
- This is a medical emergency. Treatment combines antifungal medicine with surgery.
- First-line antifungal therapy is amphotericin B (often the liposomal form is used). If possible, this is given through a vein and continued for several weeks or longer.
- Alternatives include isavuconazole or posaconazole.
- Surgery may involve removing infected tissue or, in severe cases, parts of the face, eye area, or brain to control the infection.
- Controlling underlying problems is crucial: manage blood sugar, correct metabolic problems, and support immune recovery.
- Some doctors consider additional therapies in specific cases, but the benefit of others (like hyperbaric oxygen) is not proven.

Prevention
- Wear a mask in dusty or moldy environments.
- Avoid contact with soil, moldy or water-damaged buildings, and protect skin when gardening or doing outdoor work.
- Keep diabetes well controlled and treat any immune problems promptly.
- In high-risk patients, doctors may use preventive antifungal medicines in certain situations.

Prognosis
- Mucormycosis progresses rapidly and can be fatal, especially when it involves the sinuses with brain involvement or when it spreads widely.
- Skin and localized infections have a better outlook than widespread disease.
- Early detection and aggressive treatment improve chances of recovery.

What makes it notable
- Although rare, mucormycosis is more common in some regions, such as India, and its numbers rose during the COVID-19 pandemic in some areas.
- It is linked to immune suppression, diabetes, and steroid use, among other factors.

In short, mucormycosis is a serious fungal infection that requires quick medical attention. If you or someone you know has a severe, unusual facial swelling, eye problems, fever, or coughing up blood, seek urgent medical care, especially if there is a history of diabetes or immune suppression.