Snapshot A 2-year-old girl with a history of seizure disorder presents to the pediatrician to establish care, as the family had just moved to a new city. Past medical records show that the patient has been on an anti-seizure medication since 1 years of age. There is no family history of seizures disorders. On physical exam, the girls head circumference is in the 10th percentile. She appears very happy, smiling, and laughing for no appreciable reason. She has not met the expected developmental milestones of a 2-year-old. She is also noted to have hand flapping behavior. She is referred to a geneticist. Introduction Overview login to view 2 more bullets Epidemiology login to view 2 more bullets Pathogenesis login to view 3 more bullets Genetics login to view 6 more bullets Associated conditions login to view 2 more bullets Prognosis login to view 1 more bullet Presentation Symptoms login to view 10 more bullets Physical exam login to view 8 more bullets Imaging Radiograph login to view 4 more bullets Studies Genetic testing login to view 2 more bullets Differential Prader-Willi syndrome login to view 3 more bullets Treatment Lifestyle login to view 3 more bullets Medical login to view 6 more bullets Complications Seizure disorder