• Fanhai Lin, Ye Qiu, Wen Zeng, Yi Liang, and Jianquan Zhang.
• Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China.
• Bmc Infect Dis. 2019 Apr 24; 19 (1): 336.

BackgroundTalaromyces marneffei is an invasive, and thermal dimorphic pathogenic fungus, whose infection is life threatening in human. Although immunocompromised patients, such as patients with human immunodeficiency virus infection and recipients of organ transplant, are susceptible hosts, infections have been recently reported in people with normal immune function. Patients with cancer may also be susceptible hosts but no case of T. marneffei infection has been reported in patients with lung cancer. In this case, we describe T. marneffei infection coexisting with primary pulmonary lymphoepithelioma-like carcinoma (LELC) in an HIV-negative patient.Case PresentationA 50-year-old, previously healthy female presented with a 1-month history of cough and fever. CT scans showed a mass in the left lower lung, left pleural thickening, pleural effusion, and multiple swollen lymph nodes throughout the body. Based on the pathology of the left lung lesion, she was diagnosed with left primary pulmonary LELC complicated with T. marneffei. She received both anti-tumor and anti-fungal treatments. A subsequent CT re-examination demonstrated that the mass was absorbed remarkably after treatment. Follow up showed no tumor progression and no relapse of T. marneffei infection.ConclusionThis case suggested that clinicians should pay more attention to the potential hosts of T. marneffei infection, especially those with lung cancer. Early diagnosis and treatment can improve the prognosis of T. marneffei infection coexisting with lung cancer.

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