There are three conditions used to diagnose if an infant has hereditary<unk> : if the child's body is stiff all over as soon as they are born, if they overreact to noises and other stimuli, and if the reaction to stimuli is followed by an overall stiffness where the child is unable to make any voluntary movements. A combination of electroencephalogram and an electromyogram may help diagnose this condition in patients who have not displayed symptoms as children. The electroencephalogram will not show abnormal activity other than a spike in wakefulness or alertness, while the electromyogram will show rapid muscular responses and hyperreflexia. Otherwise, genetic testing is the only definitive diagnosis. MRIs and CT scans will be normal unless other conditions exist.
Hyperekplexia
Cynanthropy
Metamorphopsia
Dysmorphopsia
Misophonia
Polycoria
Agraphesthesia
Xanthopsia