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This case differs in that the patient is not particularly anemic and the RBC count is clearly increased. This pattern of microcytic erythrocytosis could be suggestive of thalassemia, which was later confirmed by supplementary examination. The low MCH is compatible with α– or β-thalassemia, but does not exclude concomitant iron deficiency.

Numerical Results

WBC 5.67 10e3/μL
NEU 2.43 42.861 %
BLST 0.00 0.00 %
MONe .495 8.72 %
EOS .179 3.16 %
BASO .045 .798 %
LYMe 2.521 44.486 %

RBC 6.41 10e6/μL
HGB 12.0 g/dL
HCT 40.1 %
MCH 18.7 pg
MCHC 30.0 g/dL
RDW 12.4 %

PLT 315. 10e3/μL
MPV  7.07 fL

CELL-DYN Ruby Casebook. α-Thalassemia. 2018. ADD-00005070. p.33
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