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Case Reports
. 2015 Jan 16;2(2):86-8.
doi: 10.14309/crj.2015.13. eCollection 2015 Jan.

Gastric Duplication Cyst With Elevated Amylase: An Unusual Presentation Mimicking Pancreatic Cystic Neoplasm

Mohamed Sultan  1 , Djuro Karanovic  2 , Walid Chalhoub  1 , Akash Ajmera  1 , Fuad Maufa  1 , Jay C Zeck  3 , Shervin Shafa  1 , Lynt Johnson  4 , Nadim Haddad  1
Affiliations
Case Reports

Gastric Duplication Cyst With Elevated Amylase: An Unusual Presentation Mimicking Pancreatic Cystic Neoplasm

Mohamed Sultan et al. ACG Case Rep J. .

Abstract

Enteric duplication cysts (EDCs) are benign congenital anomalies that are found incidentally in adults. Gastric duplication cysts (GDCs) are the least common subtype of EDC, but when located near the pancreas, may resemble other neoplastic conditions. We report a case of GDC adjacent to the pancreas with high cystic fluid amylase and carcinoembryonic antigen (CEA) and 3 different epithelia (respiratory, gastric, and intestinal), all diagnosed via endoscopic ultrasound with fine-needle aspiration.

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Figures

Figure 1
Figure 1
Cyst lesion measuring 7.1 x 3.3 cm adjacent to the pancreas demonstrates increased signal on T2-weighted image. The lesion is separate from the adjacent pancreas and stomach.
Figure 2
Figure 2
EUS showing an anechoic cystic lesion at the tail of the pancreas without direct communication with the pancreatic duct or stomach wall.
Figure 3
Figure 3
Respiratory epithelium on H&E stain showing serrated lining in gastric duplication cyst (4x magnification).
Figure 4
Figure 4
Respiratory epithelium of gastric duplication cyst transitioning focally into gastrointestinal-type epithelium.
See this image and copyright information in PMC

References

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