Overview
Penicillium infections, particularly those caused by Penicillium marneffei, are opportunistic fungal infections often seen in immunocompromised individuals, manifesting with diverse clinical presentations including pneumonia, lymphadenopathy, and disseminated abscesses. 1Diagnosis
Clinical Presentation: Prolonged fever, lobar pneumonia, cervical lymphadenopathy, subcutaneous abscesses, and pericardial effusion.
Microbiological Confirmation: Isolation of Penicillium marneffei from clinical specimens such as pericardial fluid, pus, and tissue biopsies.
Histopathological Evidence: Demonstration of fungal elements in histologic sections of affected tissues.
Immunologic Evaluation: Assess T-lymphocyte function, as persistent depression may indicate immunocompromise. 1Management
First-Line Treatment: Amphotericin B (specific dose not provided in abstract).
Adjunctive Therapy: Ketoconazole and 5-fluorocytosine (specific doses not provided in abstract).
Supportive Care: Management of complications such as pericardial effusion and abscesses. 1Special Populations
Immunocompromised Individuals: Particularly susceptible, as evidenced by the case of a sailor with T-lymphocyte dysfunction. 1
Comorbid Infections: Concurrent opportunistic infections like herpes zoster and bacterial osteomyelitis may complicate management. 1Key Recommendations
Confirm Diagnosis via Culture and Histopathology: Essential for identifying Penicillium marneffei in clinical specimens and tissue samples. (Evidence: Moderate 1)
Initiate Antifungal Therapy with Amphotericin B: Considered first-line treatment for invasive penicilliosis. (Evidence: Weak 1)
Monitor and Manage Immune Function: Regular evaluation of T-lymphocyte function is crucial in immunocompromised patients to guide treatment and prevent secondary infections. (Evidence: Expert opinion 1)References
1 So SY, Chau PY, Jones BM, Wu PC, Pun KK, Lam WK et al.. A case of invasive penicilliosis in Hong Kong with immunologic evaluation. The American review of respiratory disease 1985. link