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KMID : 0425120230610020183
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Parasites, Hosts and Diseases
2023 Volume.61 No. 2 p.183 ~ p.193
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Diagnosing Balamuthia mandrillaris amebic meningoencephalitis in a 64-year-old woman from the Southwest of China
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Suhua Yao
Xiaoting Chen
Lian Qian
Shizheng Sun
Chunjing Zhao
Zongkai Bai
Zhaofang Chen
Youcong Wu
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Abstract
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Balamuthia mandrillaris amebic encephalitis (BAE) can cause a fatal condition if diagnosis is delayed or effective treatment is lacking. Patients with BAE have been previously reported in 12 provinces of China, with skin lesions being the primary symptom and encephalitis developing after several years. However, a significantly lower number of cases has been reported in Southwest China. Here we report an aggressive BAE case of a 64-year-old woman farmer with a history of skin lesions on her left hand. She was admitted to our hospital due to symptoms of dizziness, headache, cough, vomiting, and gait instability. She was initially diagnosed with syphilitic meningoencephalitis and received a variety of empirical treatment that failed to improve her symptoms. Finally, she was diagnosed with BAE combined with amebic pneumonia using next-generation sequencing (NGS), qRT-PCR, sequence analysis, and imaging studies. She died approximately 3 weeks after the onset. This case highlights that the rapid development of encephalitis can be a prominent clinical manifestation of Balamuthia mandrillaris infection.
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KEYWORD
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Balamuthia mandrillaris, amebic encephalitis, amebic pneumonia, Southwest China
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