A Case of Solid-pseudopapillary Neoplasm Diagnosed during Pregnancy

Abstract

A 22-year-old woman at 20 weeks of gestation visited our hospital complaining of intense epigastric pain. She had no peritoneal signs, and her laboratory data were within normal limits. Computed tomography and magnetic resonance imaging without contrast showed a large upper abdominal mass of unidentifiable origin. Her intense abdominal pain negatively affected her pregnancy. She underwent an emergent exploratory laparotomy at 20 weeks of gestation. A tumor was identified at the body of the pancreas and diagnosed as a pancreatic cystic neoplasm. Distal pancreatectomy preserving the spleen and splenic vessels was performed. The patient's postoperative clinical course was uneventful. The specimen was diagnosed as a solid pseudopapillary neoplasm (SPN) expressing progesterone receptors on immunohistochemical staining. She delivered a healthy male baby spontaneously at 37 weeks of gestation. A rare case of an SPN diagnosed during pregnancy is presented.