P. KatwilatP. ChongtrakoolS. MuangsomboonA. JitmuangFaculty of Medicine, Siriraj Hospital, Mahidol University2020-01-272020-01-272019-12-01Journal de Mycologie Medicale. Vol.29, No.4 (2019), 361-36417730449115652332-s2.0-85072633924https://repository.li.mahidol.ac.th/handle/20.500.14594/51258© 2019 Prototheca wickerhamii is a rare cause of septic prepatellar bursitis. We report a patient who had no apparent immunodeficiency developed P. wickerhamii prepatellar bursitis following intra-bursal corticosteroid injection. Clinical manifestations could not distinguish Prototheca bursitis from septic bursitis caused by other pathogens. Bursal fluid aspiration sent for direct microscopic examination and cultures could give an early diagnosis. Systemic antifungal therapy with complete surgical excision of infected bursa provided a good outcome.Mahidol UniversityMedicineArticleSCOPUS10.1016/j.mycmed.2019.100901