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  • Title: [Megaloblastic anemia due to folate deficiency associated with hereditary spherocytosis].
    Author: Mori H, Takahashi N, Tada J, Higuchi T, Shimizu T, Harada H, Maeda T, Miyoshi Y, Okada S, Niikura H.
    Journal: Rinsho Ketsueki; 1994 Apr; 35(4):397-402. PubMed ID: 8028187.
    Abstract:
    A 19 years old male admitted to our hospital with fever, abdominal pain in May 1991. Physical examination revealed anemia, jaundice and marked splenomegaly. Severe pancytopenia with macrocytic hyperchronic anemia was noted along with elevated LDH and reduced serum folate. Blood smear showed nucleated RBCs, but only few microspherocytes. Bone marrow showed erythroid hyperplasia with remarkable megaloblastic changes. Megaloblasts were negative for PAS stain. Chromosome analysis revealed normal karyotype. Erythroleukemia was suspected initially, but his general condition as well as hematological data improved following 10 units of RBC transfusion. Following brief folic acid supplements, numerous microspherocytes became evident, typical osmotic fragility test revealed a pattern for hereditary spherocytosis. These observations led us to the diagnosis of hereditary spherocytosis complicated by megaloblastic anemia due to folate deficiency. As he developed folate deficiency again 10 months later, splenectomy were performed. The anemia improved after splenectomy.
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