Immunodeficiency – mycolab.ai

Fungal Infections – a Stealthy Enemy in Patients with Chronic Granulomatous Disease: a 28-years’ Experience from North India

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Patients with chronic granulomatous disease (CGD), a rare immune system disorder, are highly susceptible to serious fungal infections. This study of 99 patients over 28 years found that 40% developed fungal infections, mostly caused by Aspergillus fungi affecting the lungs. These infections were life-threatening, with over half the infected patients dying despite aggressive treatment with antifungal medications. Doctors need to screen for fungal infections early, even in patients without obvious symptoms, and treat infants and males more aggressively.

Rasamsonia argillacea brain abscess in a lung transplant recipient: an unexpected infection by an unusual fungal pathogen

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A 65-year-old woman who received a lung transplant developed a serious brain infection caused by a rare fungus called Rasamsonia argillacea. Doctors initially struggled to identify this unusual fungus and treated her with multiple antifungal medications, but the infection proved difficult to control because the fungus was resistant to common antifungal drugs. Investigations revealed that the patient had an undiagnosed immune system disorder called chronic granulomatous disease, which made her vulnerable to this rare infection. Despite aggressive treatment including surgery and powerful antifungal medications, the patient’s condition worsened and she eventually passed away.

Surgical management of deep dermatophytosis in a patient with CARD9 deficiency

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A 23-year-old man from North Africa with a genetic immune disorder (CARD9 deficiency) developed a serious fungal skin infection with deep tissue involvement. The infection caused multiple pus-filled pockets and hair loss on his scalp. Doctors treated him with both antifungal medications and surgery to drain the infected areas, resulting in complete healing after two weeks.

The dimorphic fungus Talaromyces marneffei: An opportunistic killer in Southeast Asia

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Talaromyces marneffei is a dangerous fungus found in Southeast Asian soil that people inhale, causing a serious disease called talaromycosis. The fungus is particularly deadly for people with weakened immune systems like those with advanced HIV. The fungus has evolved clever tricks to hide from and manipulate the body’s immune system, allowing it to multiply inside immune cells called macrophages.

Cryptococcus: Emerging host risk factors for infection

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This scientific review examines why some people without HIV are getting serious Cryptococcus infections and becoming very sick. Researchers found that people with liver problems, kidney disease, diabetes, cancer, and autoimmune diseases face much higher risk. The review also identifies new drugs and therapies that can surprisingly increase infection risk, highlighting the importance of understanding individual patient factors when treating these dangerous fungal infections.

Disseminated mucormycosis leading to a fatal gastrointestinal perforation in a pediatric case of EBV-associated Hemophagocytic lymphohistiocytosis

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A 12-month-old girl with a serious immune system disorder called HLH developed a rare and dangerous fungal infection called mucormycosis. Despite receiving the best available treatments, the fungal infection spread throughout her digestive system and caused a perforation (hole) in her intestines. The doctors found it difficult to diagnose the fungal infection early because the warning signs were subtle, and the infection progressed very rapidly. Unfortunately, the girl passed away despite emergency surgery and high-dose antifungal medications.

First case of invasive Rasamsonia argillacea in a child with chronic granulomatous disease in Qatar

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A 16-year-old girl with a rare immune system disorder called chronic granulomatous disease developed a serious fungal infection caused by Rasamsonia argillacea, a fungus that is not commonly seen in clinical practice. The infection presented as a painful collection in her chest wall that required surgery and multiple antifungal medications. This is the first reported case of this particular fungal infection in the Arabian Peninsula, and successful treatment required a combination of drugs chosen based on laboratory testing of the fungus’s resistance patterns.

Disseminated Lichtheimia ramosa infection in a Japanese Black calf

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A young beef calf developed severe diarrhea and fever that did not respond to multiple antibiotics. The calf had an underdeveloped immune system (missing thymus gland) and was treated with many antibiotics and steroids, which weakened its immune system further. After death, examination revealed the calf had a widespread fungal infection caused by Lichtheimia ramosa in the liver and digestive tract, representing the first documented case of this type in Japanese Black cattle.

Research Topic: Immunodeficiency