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Understanding and recognizing the Pelger-Huët anomaly.

Rita Colella¹, Sandra C Hollensead

¹Department of Anatomical Sciences and Neurobiology, University of Louisville School of Medicine, Louisville, KY 40292, USA.

American Journal of Clinical Pathology

|February 17, 2012

Summary

Pelger-Huët anomaly (PHA) is a blood cell variation affecting granulocytes, most notably polymorphonuclear neutrophils (PMNs). It indicates lamin B receptor (LBR) gene mutations and requires family screening.

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Area of Science:

Hematology
Genetics
Cell Biology

Background:

Pelger-Huët anomaly (PHA) is a hereditary blood disorder affecting granulocyte morphology.
It is characterized by abnormal nuclear segmentation in neutrophils and other granulocytes.
PHA is primarily caused by reduced levels of the lamin B receptor (LBR).

Purpose of the Study:

To review the history and current understanding of Pelger-Huët anomaly.
To elucidate the function of the lamin B receptor (LBR) in relation to PHA.
To provide guidance on differentiating PHA from other hematologic conditions with similar granulocyte morphology.

Main Methods:

Literature review of historical and current research on Pelger-Huët anomaly.
Analysis of the molecular basis of PHA, focusing on LBR gene mutations.
Comparative review of morphologic features in various hematologic disorders.

Main Results:

Morphologic changes in granulocytes, particularly polymorphonuclear neutrophils (PMNs), are key indicators of PHA.
PHA serves as a diagnostic marker for mutations within the LBR gene.
Distinguishing PHA from other conditions requires careful examination of blood smears.

Conclusions:

Recognition of PHA in laboratory settings is crucial for identifying potential LBR gene mutations.
Physicians should be informed of the clinical significance of PHA findings.
Screening of family members using complete blood count (CBC) and peripheral blood smear review is recommended for suspected PHA cases.