A rare case of mucinous adenocarcinoma of the cecum in a pregnant woman is described.A 32-year-old Korean woman was diagnosed as having an abdominal tumor immediately after giving birth.Abdominal computed tomography demonstrated a smooth mass measuring 10 cm in diameter on glove the right side of the abdomen.Acute abdomen developed 3 days after Sponges birth.At emergency surgery, volvulus of a polypoid tumor was detected at the cecum apart from the normal appendix.
We successfully performed a tumorectomy; however, histopathological examination demonstrated mucinous adenocarcinoma with a massive blood clot.