Calcium pyrophosphate crystal arthritis associated with immune checkpoint inhibitor successfully treated with intra-articular glucocorticoid: A case report. - Kazuya Abe; Taro Iwamoto; Kei Ikeda; Takahiro Sugiyama; Shunsuke Furuta; Go Saito; Hanae Wakabayashi; Hiroshi Nakajima (Modern Rheumatology Case Reports, 2025)