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Autosomal dominant microcephaly.

R H Haslam, D W Smith

The Journal of Pediatrics

|November 1, 1979

Summary

This summary is machine-generated.

Autosomal dominant microcephaly, a genetic condition, is more common than previously thought. Early diagnosis can be aided by measuring head circumference in families with affected individuals.

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Area of Science:

Genetics
Neurology
Pediatrics

Background:

Autosomal dominant microcephaly is a rare genetic disorder characterized by an abnormally small head circumference.
Previous understanding suggested it was less common than other forms of microcephaly.

Observation:

Four families with autosomal dominant microcephaly were studied.
Phenotypic features included receding or small foreheads, upslanted palpebral fissures, and prominent ears, though the phenotype was generally nondistinctive.
Intellectual dysfunction was observed but was less severe than in autosomal recessive microcephaly.

Findings:

Autosomal dominant microcephaly may be more prevalent than previously documented.
Head circumference measurements in siblings and parents are crucial for initial investigation.

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Implications:

Increased awareness of autosomal dominant microcephaly is needed among clinicians.
Family history and head circumference measurements are vital diagnostic tools.
Further research into the genetic basis and phenotypic spectrum of this condition is warranted.