PMC2810601_01
Massive amyloid deposition beneath the surface epithelium (Congo-red x 200).
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PMC2810601_01_ymj-46-847-g001.jpg
F1
Histologic examination of esophageal, duodenal, colon (Fig. 1) and gastric (Fig. 2) biopsies revealed extensive, subepithelial, Congo red positive amyloid deposition.