The best replacement for macrocytosis is microcytosis.

The best alternatives to macrocytosis are rated as following:
★★★★★  microcytosis
★  macrocytic anemia

Your alternative for macrocytosis is not listed? Suggest!
Speaking about macrocytosis, one probably shouldn't forget about polycythemia.

Other search terms related to macrocytosis and their ratings are:
★★★★★ polycythemia
★ megaloblastic anemia
★ anaemia
You have in mind a companion for macrocytosis and it is not yet here? Propose!



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macrocytosis
microcytosis
macrocytic anemia