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Macrocytosis

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]


Macrocytosis is the enlargement of red blood cells with near-constant haemoglobin concentration, and is defined by a mean corpuscular volume (MCV) of greater than 100 femtolitres (the precise criterion varies between laboratories).

Causes

Causes

Most commonly this etiology is bone marrow dysplasia primary to alcohol abuse. Other causes may include:

Complications

Complications

No complications arise from macrocytosis itself and a prognosis will be determined from its aetiology.

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