Neurological complications associated with 2009 H1N1 infection in children have been reported and recognized worldwide. The most commonly reported neurological complications are seizures and encephalopathy. Secondary movement disorders are also associated with the infection, but such cases are rarely reported. Here, we describe the case of a 14-year-old boy with paroxysmal kinesigenic dyskinesia secondary to 2009 H1N1 infection, who presented with dystonia and choreic movement triggered by sudden voluntary movement.
Child ; Chorea ; Dyskinesias ; Dystonia ; Humans ; Influenza A virus ; Movement Disorders ; Seizures

Trisomy 14 mosaicism is a rare chromosome disorder characterized by delayed development, failure to thrive, and facial dysmorphism. Only approximately 30 trisomy 14 mosaicism cases have been reported in the literature because trisomy 14 is associated with early spontaneous abortion. We report a case of a 17-month-old girl with abnormal skin pigmentation, delayed development, facial dysmorphism, and failure to thrive with the 47,XX,+14/46,XX chromosome complement.
Abortion, Spontaneous ; Chromosome Disorders ; Chromosomes, Human, Pair 14 ; Complement System Proteins ; Failure to Thrive ; Female ; Humans ; Infant ; Korea ; Mosaicism ; Pregnancy ; Skin Pigmentation ; Trisomy