Research Keyword: HIV infection

Emerging Infections Network Survey of Screening for Cryptococcal Antigenemia, United States, 2024

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This survey asked infectious disease doctors across the United States about their use of a simple blood test (cryptococcal antigen screening) for HIV patients. The test can detect a dangerous fungal infection weeks before symptoms appear, allowing for early treatment. However, the survey found that many doctors are not using this recommended test regularly, primarily because they are unsure about its benefits and are confused about screening guidelines.

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Photo Quiz: A cutaneous fungal infection with discordant biomarker results—a diagnostic challenge

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A woman with advanced HIV infection presented with skin sores and respiratory symptoms that were initially suspected to be a viral infection. Testing revealed she had histoplasmosis, a serious fungal infection caused by Histoplasma capsulatum that had spread throughout her body affecting her skin, lungs, and lymph nodes. While standard tests for this fungus were negative, other fungal markers and cultures eventually confirmed the diagnosis, and she was treated with antifungal medications.

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Saksenaea oblongispora Rhinosinusitis in Advanced HIV: A Rare and Lethal Mucormycosis

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A 32-year-old man with advanced HIV developed a severe fungal infection of his sinuses caused by a rare fungus called Saksenaea oblongispora, which typically doesn’t affect people with HIV. The patient presented with severe facial swelling that rapidly worsened, and despite doctors identifying the fungus through biopsies and lab tests, he did not receive antifungal treatment or surgery before his condition became critical. This is the first case of this particular fungal infection documented in sub-Saharan Africa and in HIV patients, highlighting how dangerous this rare infection can be and how challenging it is to diagnose quickly enough to save lives.

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Disseminated cryptococcosis in an HIV patient with hepatitis C as the associated risk factor

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A 29-year-old patient with HIV and hepatitis C developed a serious fungal infection caused by Cryptococcus neoformans that spread to the brain. The infection was diagnosed through blood and spinal fluid tests and treated successfully with antifungal medications. This case shows why it is important to recognize and treat fungal infections quickly in people with weakened immune systems and multiple health conditions.

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Photo Quiz: A cutaneous fungal infection with discordant biomarker results—a diagnostic challenge

mycolabadmin

A woman with advanced HIV disease presented with unusual skin lesions that were initially suspected to be from a virus, but laboratory testing revealed a rare fungal infection called histoplasmosis caused by Histoplasma capsulatum. The case was challenging because some standard fungal tests came back negative even though the patient had the infection, showing why doctors need to rely on culture and examination under the microscope. She was treated with antifungal medications and her diagnosis highlights the importance of considering fungal infections in severely immunocompromised patients even when initial tests seem negative.

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