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  • Title: [Atypical familial microcytosis: a familial and genetic study].
    Author: Remacha AF, del Río E, Baiget M.
    Journal: Med Clin (Barc); 1998 Feb 14; 110(5):183-5. PubMed ID: 9547723.
    Abstract:
    The characteristics of familiar atypical microcytosis studied during one year were evaluated. Out of 149 patients with microcytosis in whom iron deficiency was ruled out, a heterogenous beta-thalassemia was diagnosed in 72 cases, a heterozygous delta beta-thalassemia in 16 cases and a hemoglobinopathy in 3 cases. The microcytosis was related to an inflammatory anemia in 12 cases and to an hemopathy in 9 cases. An atypical microcytosis was detected in 37 patients. A familiar and molecular analysis was carried out to detect alpha-thalassemia in cases with atypical microcytosis. It was possible to complete the familiar and molecular analysis in 35 out of 37 cases, and an alpha-thalassemia was observed in 31 patients. Most cases proved to be heterozygous or homozygous-alpha 3.7-thalassemia. No patient with heterozygous alpha zero-thalassemia was found. Most cases of familiar atypical microcytosis in our country are due to -alpha 3.7-thalassemia. Bearing these findings in mind, this analysis should only be used in situations where a problem of prenatal diagnosis is present. Moreover, systematic molecular analysis of familiar atypical microcytosis could be justified if the MCV is lower than 75 fl.
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