Affiliation:
1. Alberta Children's Hospital Research Institute, Department of Medical Genetics Cumming School of Medicine, University of Calgary Calgary Alberta Canada
2. Department of Pediatrics Cumming School of Medicine, University of Calgary Calgary Alberta Canada
3. Department of Pediatrics Queen's University Kingston Ontario Canada
Abstract
AbstractKagami–Ogata syndrome (KOS) is a clinically recognizable syndrome in the neonatal period. It is characterized by specific skeletal anomalies and facial dysmorphisms. It is typically caused by paternal uniparental disomy of chromosome 14, while epimutations and microdeletions are less commonly reported causes. In the pediatric setting, KOS is a well delineated syndrome. However, there is a dearth of literature describing the natural history of the condition in adults. Herein, we describe a 35‐year‐old man, the first adult with KOS reported due to paternal uniparental disomy 14, and review reports of KOS in other affected adults. This highlights the variability in neurocognitive phenotypes, the presence of connective tissue abnormalities, and the uncertainties around long‐term cancer risk.