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- W2112646761 abstract "A 61-year-old man was referred for nearly 2 years of recurrent occult intestinal bleeding with chronic iron deficiency anemia. Major symptoms included fatigue and exertional dyspnea. Physical examination revealed only pallor of the face and conjunctivae. Laboratory test results showed a hemoglobin level of 8 g/dL and a hematocrit level of 27.4%, with a ferritin level of 4.6 ng/mL. EGD revealed a tumorous, nodular, vegetative lesion in the ampulla of Vater without active bleeding (A). Nonetheless, this lesion was considered to be the cause of the patient's chronic bleeding and anemia. Multiple biopsy specimens taken from this lesion revealed round or oval cross sections of vessels of different diameters, marked proliferation of vascular endothelial cells that were attempting to generate new vessels or an endothelial lining in an arterial-type lumen, erythrocyte aggregation, and fibrin derivatives in vessel lumens. Also, marked endothelial-type cell proliferations were seen with CD34 staining (B-D), allowing diagnosis of a vascular hamartoma of the ampulla of Vater. An elective surgical intervention is planned for this patient." @default.
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- W2112646761 date "2014-08-01" @default.
- W2112646761 modified "2023-10-10" @default.
- W2112646761 title "Vascular hamartomatous lesion of the ampulla Vateri: a very uncommon occurrence" @default.
- W2112646761 doi "https://doi.org/10.1016/j.gie.2014.03.013" @default.
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