Korean J Nucl Med.  1998 Apr;32(2):172-177.

A Case of Gastro-Colic Fistula due to Ectopic Gastric Mucosa and its 99mTcO4 Scan Findings

• Park SG
• Lee YH
• Im CY
• Cho JH

Abstract

We report a case of gastro-colic fistula caused by ectopic gastric mucosa developed at transverse colon. Fistula was detected by colonofiberscopy. And fistulous tract was proved by barium enema. Meckel's diverticulum scan finding was similar to that of GI bleeding; e.g. injected radioactivity was secreted into the lumen and moved along the lumen. There was no bleeding. And there was no diverticulum in the colon. Absence of diverticular pouch may explain this unusuaal GI bleeding-like scan finding rather than focal collection of radioactivity, which is typical of ectopic gastric mucosa found in the Meckel's diverticulum. Ectopic gastric mucosa was confirmed by colonfiberscopic biopsy. We suggest GI bleeding-like pictures should be included differential diagnosis of Tc-99m-O4 (ectopic gastric mucosa or Meckel's diverticulum) scan.

Keyword

Gastro-cc!lic fistula; Ectopic gastric rnucosa; Scintigraphy; Meckels diverticulum scan

MeSH Terms

Barium
Biopsy
Colon
Colon, Transverse
Diagnosis, Differential
Diverticulum
Enema
Fistula*
Gastric Mucosa*
Hemorrhage
Meckel Diverticulum
Radioactivity
Radionuclide Imaging
Sodium Pertechnetate Tc 99m*
Barium
Sodium Pertechnetate Tc 99m