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  • Title: Pure red cell aplasia associated with parvovirus B19 infection in a patient with ulcerative colitis.
    Author: Isomoto H, Fukuda Y, Bando Y, Machida I, Machida H, Omagari K, Mizuta Y, Murase K, Fukushima T, Murata I, Kohno S.
    Journal: Dig Dis Sci; 2003 Oct; 48(10):2104-7. PubMed ID: 14627362.
    Abstract:
    Anemia is a common problem that results from various causes in patients with ulcerative colitis (UC), but there is little information on the association of UC with pure red cell aplasia (PRCA). We describe the first case of parvovirus-induced PRCA in UC. A 28-year-old woman with chronic UC was admitted to the hospital for treatment of active pancolitis. Three courses of pulse therapy with methylprednisolone provided complete remission. However, the patient developed reticulocytopenia and a subsequent fall in hemoglobin to 6.2 g/dl. Bone marrow examination revealed selective aplasia of red cell precursors and giant pronoromoblasts. Enzyme immunoassay identified specific immunoglobulin M antibody against parvovirus B19 in the serum. Based on these findings, the diagnosis of PRCA caused by the virus was made. The patient was treated with a 3-day course of intravenous immunoglobulin (5 g/day), resulting in brisk reticulocytosis, folowed by normalization of hemoglobin level. In conclusion, Chronic or acute blood loss in UC associated with enhanced red cell turnover might be a risk factor for PRCA when affected patients contract parvovirus B19 infection.
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