Ectopic Cervical Thymoma with Myasthenia Gravis and Pure Red Cell Aplasia: A Case Report. - Narusawa E; Obayashi K; Obayashi S; Nagashima T; Kawatani N; Yazawa T; Yoshikawa R; Matsumura N; Shirabe K; Nakazawa S (Surgical case reports, 2026)