• Ying Zhou, Yongfeng Liu, and Ying Wen.
• Department of Infectious Diseases, The First Affiliated Hospital of China Medical University, No. 155, Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, China.
• Bmc Infect Dis. 2021 Apr 21; 21 (1): 376.

BackgroundThe manifestation of Talaromyces marneffei infection in some HIV-infected patients may be atypical. Cases with gastrointestinal involvement have rarely been reported. It is hard to make a diagnosis when patients are lacking the characteristic rash and positive blood culture.Case PresentationHere, we described a patient living with HIV who complained of fever and abdominal pain, and was rapidly diagnosed with Talaromyces marneffei infection by metagenomic next-generation sequencing (mNGS) using formalin-fixation and paraffin-embedded (FFPE) samples of omentum majus tissue. We also reviewed reported related cases.ConclusionsTalaromyces marneffei is an unusual cause of clinical presentations involving obvious abdominal pain and lower gastrointestinal bleeding, but can be included in the differential diagnosis. As an important diagnostic tool, the significance of mNGS using FFPE samples of lesions provides a more targeted diagnosis.

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