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Large mucinous cystic neoplasm of the pancreas associated with pregnancy

Shin-ichi Ikuta1, Tsukasa Aihara, Chiaki Yasui

  • 1Department of Surgery, Meiwa General Hospital, Agenaruo 4-31, Nishinomiya, Hyogo 663-8186, Japan. ikuta@meiwa-hospital.com

World Journal of Gastroenterology
|December 17, 2008
PubMed

Mucinous cystic neoplasms (MCNs) of the pancreas occur mostly in females and are potentially sex hormone-sensitive. However, a MCN occurring during pregnancy is quite rare. A 30-year-old woman in the tenth week of pregnancy was referred to us because of a rapid increase in left hypochondrial distending pain. On ultrasound, the patient had a large intra-abdominal cystic lesion. She was thereafter diagnosed with missed abortion and a computed tomography scan showed that the lesion was a cystic tumor 18 cm in diameter originating from the pancreatic tail. The patient subsequently underwent tumor resection with distal pancreatectomy, sparing the spleen. Histopathological analysis of the specimen revealed a pancreatic MCN with moderate dysplasia. Immunohistochemically, the tumor was positive for both estrogen and progesterone receptors. To our knowledge, this is the first reported case of pancreatic MCN with moderate dysplasia in association with pregnancy. Our case strongly indicates that pancreatic MCN is female-hormone dependent.

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