•Alpha-fetoprotein secreting tumors in gynecologic cancers have a broad differential.•Surgical pathology may provide a more comprehensive picture of tumor heterogeneity than initial biopsy.•Yolk Sac Tumor components intermixed with carcinoma points towards a somatic derivative rather than a collision tumor.•Alpha-fetoprotein can be trended over time to gauge response to treatment of cancers that produce the protein.
Keywords: Alpha-fetoprotein; Endometrial carcinoma; Endometroid; Hepatoid; Uterine cancer; Yolk sac tumor.
© 2023 The Authors.