Autosomal dominant KLF1-related dyserythropoietic anemia

What it is

A form of congenital dyserythropoietic anemia (CDA) characterized by ineffective erythropoiesis and hemolysis that leads to severe anemia at birth, requiring repeated transfusions. The majority of affected individuals experience severe hemolytic anemia, often accompanied by a normal or slightly elevated reticulocyte count, hepatosplenomegaly, hyperbilirubinemia, and persistence of fetal hemoglobin. Hypertrophic cardiomyopathy and occasional dysmorphic features, including large anterior fontanel, hypertelorism, micropenis, and hypospadias, have also been reported. All documented cases to date share the same dominant-negative missense variant, E325K, in the KLF1 gene (19p13.2).

Key facts

Prevalence

<1 / 1 000 000

Age of onset

Infancy, Neonatal

Inheritance

Autosomal dominant

Classified as

Disease

Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.

Gene

ICD-10 codes

ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.

Related health topics

Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.

Cross-references