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.
Abstract:
Microcephaly-Capillary Malformation syndrome (MIC-CAP) is a rare genetic disorder reported in 18 individuals to date. The clinical features typically include microcephaly, multiple cutaneous capillary malformations, seizures, neurologic impairment, and global developmental delay. Currently, there is little published information about the natural history and long-term outcomes for individuals with MIC-CAP. In this report, we provide follow up on two previously published patients and describe four new patients. The included patients highlight increased variability in the clinical spectrum and provide novel information regarding medical complications and recurrent variants.
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.
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