title: Primary strumal carcinoid tumor of the ovary: A pregnant patient exhibiting severe constipation and CEA elevation.
abstract: ► We present a rare case of a PYY-positive primary strumal carcinoid tumor of the ovary during pregnancy. ► MRI was useful for the preoperative diagnosis, and the prenatal course was uneventful after the operation. ► Colitis due to severe constipation caused by PYY, which is an inhibitor of intestinal mobility, might induce serum CEA elevation.
authors.affiliation: Department of Obstetrics and Gynecology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-Ku, Kumamoto-City, Kumamoto 860-8556, Japan.
authors.forename: Munekage
authors.initials: M
authors.lastname: Yamaguchi
authors.affiliation: Department of Obstetrics and Gynecology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-Ku, Kumamoto-City, Kumamoto 860-8556, Japan.
authors.forename: Hironori
authors.initials: H
authors.lastname: Tashiro
authors.affiliation: Department of Obstetrics and Gynecology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-Ku, Kumamoto-City, Kumamoto 860-8556, Japan.
authors.forename: Ken-Ichi
authors.initials: K
authors.lastname: Motohara
authors.affiliation: Department of Obstetrics and Gynecology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-Ku, Kumamoto-City, Kumamoto 860-8556, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Ohba
authors.affiliation: Department of Obstetrics and Gynecology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-Ku, Kumamoto-City, Kumamoto 860-8556, Japan.
authors.forename: Hidetaka
authors.initials: H
authors.lastname: Katabuchi
keywords: CEA elevation; Ovarian strumal carcinoid; Ovarian tumor during pregnancy; Peptide YY; Severe constipation