Pelger–Huët anomaly
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Pelger–Huët anomaly is a blood laminopathy associated with the lamin B receptor,[2] wherein several types of white blood cells (neutrophils and eosinophils) have nuclei with unusual shape (being bilobed, peanut or dumbbell-shaped instead of the normal trilobed shape) and unusual structure (coarse and lumpy).[3]
Pelger–Huët anomaly | |
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Other names | PHA[1] |
blood smear of a patient with myelodysplastic syndrome: red blood cells showing marked poikilocytosis, in part related to post-splenectomy status, a central and hypogranular neutrophil with a pseudo-Pelger-Huet nucleus. | |
Pronunciation |
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Specialty | Medical genetics |
It is a genetic disorder with an autosomal dominant inheritance pattern. Heterozygotes are clinically normal, although their neutrophils may be mistaken for immature cells which may cause mistreatment in a clinical setting. Homozygotes tend to have neutrophils with rounded nuclei that do have some functional problems.[citation needed]