Thymic hyperplasia after chemotherapy for ovarian malignancy: two cases complicated by hyperthyroidism. - Ichikawa, Fuyuki; Koike, Makoto; Matsutani, Kazuna; Tanaka, Asuka; Yoshimura, Akihiko; Oka, Fujihiro; Yokoi, Takeshi (Journal of Surgical Case Reports, 2026)