Fig. 1

A 56-year-old man with fungal arthritis of the right knee due to Candida parapsilosis. a X-ray showed degenerative arthritis of bilateral knee. b MRI T2-weighted and SPAIR sequences demonstrated subchondral bone marrow edema in the lateral femoral condyle, and the presence of soft-tissue abnormalities, including capsulitis, extensive synovial hyperplasia, capsular fluid collection, and periarticular muscle edema. c Under the arthroscope, inflammatory synovium was observed. d Representative isolates of Candida were cultured from the synovial fluid in the Sabouraud medium. e PAS staining revealed the budding cells and pseudohyphae of Candida parapsilosis in the synovial tissue