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[Thalassemia today. The radiologic evolution of lesions of the skull and hand with reference to transfusion therapy].

The main abnormalities of the hand and skull in a group of patients who underwent hypertransfusion regimen were reviewed and compared to the lesions observed in a control group of low-transfused patients. The results are reported, and a possible correlation with transfusion regimen is discussed: since bone lesions are explained on the basis of relationship between proliferating bone marrow and bone cortex, hypertransfusion regimen will prevent the development of abnormalities, only if established early in life. For this reason, skeletal lesions in Cooley's anaemia have changed their "classical" radiographic patterns. In the skull, the diploic space may become normal, and the overgrowth of facial bones moderate; the pneumatization of paranasal sinuses may not be completely impeded by the swelling of the jaws, the "hair-brush" pattern may disappear completely. The normalized picture of the hand is and remains a typical differential sign of prepuberal and adult patients.