Case report: Childhood erythrocytosis due to hypermanganesemia caused by homozygous SLC30A10 mutation
We present a rare case of erythrocytosis due to a homozygous SLC30A10 mutation, causative of Hypermanganesemia with Dystonia, Polycythemia, and Cirrhosis (HMDPC).The patient presented at 7 years of age with the incidental finding of hemoglobin up to 22.3 g/dL.Despite extensive phenotypic evaluation and genetic testing for common causes of erythrocy