Abstract
Pseudomelanosis is a rare finding during upper gastrointestinal endoscopy, and is most commonly seen in the duodenum. Involvement of other organs in the upper gastrointestinal tract is extremely rare, with only 1 reported case involving the stomach, duodenum, and jejunum. We present a case of a 60-year-old woman with mild anemia and hematemesis, who was found to have characteristic speckled pattern of gray-black pigmentation on endoscopic examination. To the best of our knowledge, this is the second reported case of pseudomelanosis involving the stomach, duodenum, and jejunum.
MeSH terms
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Aged
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Biomarkers / analysis
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Biopsy
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Duodenal Diseases / diagnosis*
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Duodenal Diseases / metabolism
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Duodenal Diseases / pathology
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Duodenum / chemistry
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Endoscopy, Gastrointestinal
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Female
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Gastric Mucosa / chemistry
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Humans
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Intestinal Mucosa / chemistry
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Jejunal Diseases / complications
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Jejunal Diseases / diagnosis*
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Jejunal Diseases / metabolism
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Jejunal Diseases / pathology
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Jejunum / chemistry
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Melanosis / diagnosis*
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Melanosis / metabolism
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Melanosis / pathology
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Pigments, Biological / analysis
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Predictive Value of Tests
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Stomach Diseases / diagnosis*
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Stomach Diseases / metabolism
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Stomach Diseases / pathology
Substances
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Biomarkers
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Pigments, Biological