The present position of the treatment of megaloblastic anaemias.

نویسنده

  • C C UNGLEY
چکیده

A distinction must be drawn between megaloblastic and macrocytic anaemias. Not all macrocytic anaemias are megaloblastic and not all megaloblastic anaemias are macrocytic. The term macrocytosis refers to the size of red blood cells in the peripheral blood. The mean cell volume of packed red blood cells (haematocrit) may be greater than normal, or the diameters of a proportion of red blood cells may fall outside the normal limits of Price-Jones' curves. Macrocytosis may be present even when the marrow does not contain megaloblasts, e.g. sometimes in diseases of the liver and in leukaemias. Macrospherocytosisi.e. increase in mean volume of red blood cells without a corresponding increase in their mean diameter and may also exist without a megaloblastic marrow, e.g. in some acquired haemolytic anaemias. Megaloblastic anaemias are distinguished in two ways: (a) by finding megaloblasts within the peripheral blood or in the marrow (b) by therapeutic tests with cyanocobalamin (vitamin B12) or folic acid.

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عنوان ژورنال:
  • Postgraduate medical journal

دوره 34 394  شماره 

صفحات  -

تاریخ انتشار 1958