A Case of Pulmonary Infection Due to Magnusiomyces capitatus in a Non-Immunocompromised Patient with Cerebral Palsy

Yanyan Jiang,1 Zhengzheng Chen,1 Huoyang Lv,2 Lihua Jiang,1 Zhiyuan Fan3 1Medical Laboratory Center, Tongxiang First People’s Hospital, Jiaxing, Zhejiang, People’s Republic of China; 2Medical Laboratory Center, Zhejiang Provincial People’s Hospital, Hangzhou, Zhejiang, People’s Republic of China; 3Department of Emergency Medicine, Tongxiang First People’s Hospital, Jiaxing, Zhejiang, People’s Republic of ChinaCorrespondence: Zhiyuan Fan, Department of Emergency Medicine, Tongxiang First People’s Hospital, Jiaxing, Zhejiang, People’s Republic of China, Email fanzhiyuan19880916@126.comBackground: Magnusiomyces capitatus (M. capitatus) is a dimorphic opportunistic fungus that is a rare yeast and rarely reported in Asia. Owing to the absence of established clinical breakpoints, the treatment of this fungus poses challenges.Case Presentation: We report a rare case of a young, non-immunocompromised man with cerebral palsy, spinal deformity, and pulmonary M. capitatus infection. The patient’s condition improved after treatment with voriconazole and became stable.Conclusion: M. capitatus infection is commonly associated with hematologic tumors and compromised immunity. Reports of M. capitatus infection in patients with non-immunocompromised host are uncommon. Insufficient understanding of these fungi may lead to underdiagnosis of fungal infection and clinical misdiagnosis, potentially resulting in delayed treatment and increased mortality.Keywords: invasive fungal infection, Magnusiomyces capitatus, MALDI-TOF MS, ITS, cerebral palsy, spinal deformity