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Editor's quiz: GI snapshot
Editor's quiz: GI snapshot
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From the question, see page 728
Biopsy specimens of the colonic lesions disclosed marked amorphous eosinophilic deposition in the mucosa and submucosa (figure 4). Congo red staining was pathognomonic for amyloid deposition (figure 5) and retention of staining following pretreatment with potassium permanganate indicated amyloid light chain protein (AL) …
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