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Magnetic resonance enterography showing tubular shaped stomach (arrow).
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Persistent symptoms led to further workup including upper gastrointestinal series, gastric emptying, and magnetic resonance imaging enterography, all of which were negative for gastric outlet obstruction and small bowel strictures, but noted a tubular shaped stomach (Figure 1).
Histological section of gastric mucosa with thickened subepithelial collagen deposition
highlighted by Masson trichrome stain (color blue).
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Repeat EGD with tunneled biopsies were taken from the gastric body and antrum revealing thickened subepithelial collagen layer on Masson Trichrome stain (Figure 2).