Advanced rectal cancer with multiorgan metastasis detected after single fetal death in twin pregnancy: a case report. - Inoue S; Ito Y; Hasegawa A; Okubo H; Suemitsu T; Matsui H; Takahashi K; Kamide T; Harada K; Saruta M; Kawahara T; Fukasawa N; et al. (AME case reports, 2026)