Koji Sato
ORCID: 0000-0003-3293-6420
· 1 paper in corpus
case-report
2025
A woman in her seventies presented with mucous hematochezia. Colonoscopy revealed a poorly differentiated adenocarcinoma in the upper rectum. Immunohistochemical staining showed CK7 positivity and CK20/CDX2 negativity, findings atypical for…