J Korean Soc Radiol. 2010 Sep;63(3):245-247. Korean.
Published online Sep 30, 2010.
Copyright © 2010 The Korean Society of Radiology
Case Report

Double Pylorus After a Peptic Ulcer in the Gastric Antrum: A Case Report

Jang-Hyeon Song, M.D., Jin Woong Kim, M.D.,2 Yong Yeon Jeong, M.D.,2 Suk Hee Heo, M.D.,2 Sang Soo Shin, M.D., Heoung Keun Kang, M.D.,2 and Young Hoe Heo, M.D.3
    • 1Department of Diagnostic Radiology, Chonnam National University Medical School, Chonnam National University Hospital, Gwang-Ju, Korea.
    • 2Department of Diagnostic Radiology, Chonnam National University Medical School, Chonnam National University Hwasun Hospital, Jeollanam-do, Korea.
    • 3Department of Hepato-Pancreato-Biliary Surgery, Chonnam National University Medical School, Chonnam National University Hospital, Gwang-Ju, Korea.
Received April 18, 2010; Accepted May 27, 2010.

Abstract

Double pylorus is an accessory channel between the gastric antrum and duodenal bulb with a normal pyloric canal. It is understood that the etiology of double pylorus is a congenital anomaly or an acquired complication after the occurrence of peptic ulcer disease. We report the CT findings with CT gastrography of double pylorus as a complication after a previous peptic ulcer in the gastric antrum.

Keywords
Pylorus; Computed tomography (CT); Gastric fistula

Figures

Fig. 1
Fig. 1. Double pylorus as a complication after previous peptic ulcer in the gastric antrum in a 54-year-old man.
A. Endoscopic image shows the peptic ulcer (white arrowhead) in the lesser curvature of gastric antrum and the pyloric canal (arrow).

B. 2D axial CT image shows a normal pylorus (arrow) and abnormal channel (arrowhead) between gastric antrum and duodenal bulb.

C. CT gastrogram shows double orifices of a normal pylorus (arrow) and abnormal channel (arrowhead) in the gastric antrum.

D. After 4 months, follow up endoscopic image shows the upper abnormal channel (black arrowhead) between the gastric antrum and duodenal bulb at the same site of a peptic ulcer on previous endoscopic image, and the lower true pyloric canal (arrow).

E. Image of upper gastrointestinal series (after 2 months) shows the upper abnormal channel (arrowhead) in the lesser curvature between gastric antrum and duodenal bulb and the lower true pyloric canal (arrow).

References

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