Research Keyword: Phaeohyphomycosis

Deep Fungal Infection of the Skin with Two Rare Fungi in a Dog Being Treated with Immunosuppressant Therapy: A Case Report

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An 8-year-old dog receiving long-term immunosuppressive medication for brain inflammation developed rare fungal skin infections caused by two unusual fungi not previously reported together in veterinary medicine. Diagnosis required multiple tests including tissue samples, staining techniques, and genetic testing. Despite treatment with antifungal medications and careful adjustment of immunosuppressive drugs, the infections did not improve, highlighting the difficult balance between fighting infections and controlling the underlying immune disease.

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Phaeohyphomycosis due to Nigrograna chromolaenae in a cardiac transplant patient

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A 71-year-old heart transplant patient developed a slowly growing bump on his finger caused by a rare fungus called Nigrograna chromolaenae. Doctors initially tried common antifungal medications that didn’t work well, but the patient improved significantly when switched to posaconazole treatment. This is the first documented case of this particular fungus infecting a human, highlighting the importance of accurately identifying fungi to choose the right treatment.

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Deep cutaneous phaeohyphomycosis caused by Cladophialophora boppii: A case report

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A 69-year-old woman with breast cancer developed a skin infection caused by a rare fungus called Cladophialophora boppii while taking dexamethasone for cancer treatment. Doctors diagnosed the infection through skin biopsy and fungal testing, then removed the infected area surgically. After three weeks of antifungal medication (itraconazole), the infection cleared completely and did not return during four months of follow-up. This case suggests that surgery combined with short-term antifungal treatment may be sufficient for this type of infection.

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The Brief Case: Cutaneous ulceration associated with acalabrutinib treatment

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A 72-year-old patient being treated with acalabrutinib for blood cancer developed a slowly growing skin ulcer on the thigh. Testing identified a fungal infection caused by Alternaria alternata, a mold found in soil and air. The patient was successfully treated with an antifungal medication called posaconazole, with the ulcer healing over one month. This case highlights that doctors should check for fungal infections in chronic skin wounds of patients taking BTK inhibitor medications.

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