Korean J Gastroenterol.  2014 Mar;63(3):187-190. 10.4166/kjg.2014.63.3.187.

A Case of Primary Retroperitoneal Mucinous Cystadenoma Arising from the Retropancreatic Area

Affiliations
  • 1Division of Gastroenterology and Hepatology, Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea. tnkim@yu.ac.kr

Abstract

Primary retroperitoneal mucinous cystadenoma is an extremely uncommon tumor, even though mucinous cystadenoma often develops in the ovary and less frequently in the pancreas. A 21-year-old female was admitted to our hospital due to severe abdominal pain. A well-demarcated, oval shaped cystic tumor at the retropancreatic area with displacement of the pancreas and surrounding major vessels was observed on CT and MRI. Exploratory laparotomy was performed, and complete excision of the entire cyst was performed without complication. The pathologic finding was consistent with primary retropancreatic mucinous cystadenoma. To the best of our knowledge, this report is the first to describe a case of retropancreatic mucinous cystadenoma arising from the retropancreatic area in Korea.

Keyword

Mucinous cystadenoma; Retroperitoneal; Primary

MeSH Terms

Antibodies/metabolism
Cystadenoma, Mucinous/*diagnosis/pathology/surgery
Female
Humans
Magnetic Resonance Imaging
Mucin 5AC/immunology
Mucin-2/immunology
Ovarian Neoplasms/*diagnosis/pathology/surgery
Retroperitoneal Neoplasms/*diagnosis/pathology/surgery
Tomography, X-Ray Computed
Young Adult
Antibodies
Mucin 5AC
Mucin-2

Figure

  • Fig. 1. CT scan of the abdomen. A well-demarcated oval shaped cystic tumor measuring 3.0×6.0 cm in size at the retropancreatic area with displacement of the pancreas and surrounding major vessels was observed (black arrow).

  • Fig. 2. MRI of the abdomen. The cyst consisted of protein rich liquid contents with irregular thickening of the cyst wall (white arrows).

  • Fig. 3. Gross finding of the resected specimen. The cystic mass measured 5.5 × 3.5 cm in size and weighed 11.8 g, and consisted of thick mucus material on the cut surface.

  • Fig. 4. Microscopic finding. (A) The cyst wall was lined with a single layer of mucinous epithelial cells (H&E, ×200). (B) On immunohistochemical staining, MUC2 and MUC5AC antibodies were positive (×200).


Reference

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