Further clinical delineation of microcephaly-capillary malformation syndrome

Julianne K Postma1, Jessica L Zambonin2, Ebtissal Khouj3

  • 1Department of Medical Genetics, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, Ontario, Canada.

Insights

Microcephaly-Capillary Malformation syndrome (MIC-CAP) is a rare genetic disorder. This study expands knowledge on its variable clinical spectrum, medical complications, and genetic variants in six patients.

Area of Science:

  • Genetics and rare diseases research.
  • Clinical neurology and developmental pediatrics.

Background:

  • Microcephaly-Capillary Malformation syndrome (MIC-CAP) is a rare genetic disorder with limited documented cases and natural history data.
  • Previous reports describe key features including microcephaly, capillary malformations, seizures, neurological impairment, and developmental delay.

Observation:

  • This report details follow-up on two previously described patients and introduces four new individuals with MIC-CAP.
  • The cohort exhibits significant variability in clinical presentation, expanding the known spectrum of the syndrome.

Findings:

  • Novel information regarding specific medical complications associated with MIC-CAP is presented.
  • Recurrent genetic variants contributing to the syndrome are identified, offering insights into genotype-phenotype correlations.

Implications:

  • This study enhances understanding of MIC-CAP's natural history and long-term outcomes.
  • Findings will aid in improved diagnosis, patient management, and genetic counseling for families affected by MIC-CAP.