Rui Nakajima, Nanami Takeda, Mai Okubo, Kurumi Asako, Hirotoshi Kikuchi, Koji Saito, Satoe Numakura, Yuko Sasajima, Hajime Kono. Biopsy-Proven Cerebral Parenchymal Involvement in IgG4-Related Disease: A Case Report and a Literature Review. Cureus. 2025. 17. 12. e98564