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Penicillium marneffei infection within an osteolytic lesion in an HIV-negative patient
Guang-nan Liu1, Juan-shu Huang2, Xiao-ning Zhong1
1Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University, No. 6 Shuangyong Road, Nanning, 530021, Guangxi, China.
Abstract:
Penicillium marneffei is a thermally dimorphic pathogenic fungus that causes systemic infection similar to disseminated cryptococcosis. P. marneffei is endemic in Southeast Asia, usually infecting HIV-infected individuals; infection of HIV-negative individuals is extremely rare. Here, we describe a disseminated P. marneffei infection within an osteolytic lesion in an HIV-negative patient. A 40-year-old Chinese woman presented with intermittent fever, generalized lymphadenopathy, and a skin rash. Following a sternum biopsy, the patient was diagnosed with P. marneffei infection. An emission computed tomography bone scan revealed the presence of increased radioactivity in the left clavicle and sternum, indicative of an osteolytic lesion. In addition to reporting this very rare case, we also present a brief review of the literature, highlighting the differences in clinical manifestations between HIV-positive and HIV-negative patients infected with P. marneffei as it applies to our case.
Insights
This study reports a rare case of disseminated Penicillium marneffei infection in an HIV-negative woman, presenting with osteolytic lesions. The findings highlight distinct clinical features compared to infections in HIV-positive individuals.
Area of Science:
- Mycology
- Infectious Diseases
- Clinical Case Study
Background:
- Penicillium marneffei is a thermally dimorphic fungus endemic to Southeast Asia.
- It typically causes disseminated infections in individuals with Human Immunodeficiency Virus (HIV).
- Infection in HIV-negative individuals is exceptionally rare.
Observation:
- A 40-year-old HIV-negative woman presented with fever, lymphadenopathy, and rash.
- Diagnosis confirmed disseminated Penicillium marneffei infection via sternum biopsy.
- Bone scan revealed osteolytic lesions in the clavicle and sternum.
Findings:
- The patient's presentation and osteolytic lesion development are detailed.
- Clinical manifestations in this HIV-negative patient are compared to those in HIV-positive cases.
- This case underscores the potential for P. marneffei to cause severe disease in non-immunocompromised individuals.
Implications:
- This case expands the understanding of Penicillium marneffei epidemiology and clinical spectrum.
- It emphasizes the need for considering P. marneffei in endemic areas, even in HIV-negative patients with unusual presentations.
- Highlights potential differences in disease presentation and management strategies between HIV-positive and HIV-negative patients.
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