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Temporal subcortical T2 hypointensity on MRI in epilepsia partialis continua, a non ketotic hyperglycemia rather than
Safoura Kowkabi1, Reza Nemati2, Mahmood Mohammadi3
1Fellowship of Pediatric Clinical Neurophysiology, Clinical Neurology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
Purpose:
Hyperglycemia can present as many neurological problems, one of them is seizure. Different brain MRI features can be seen in focal seizures associated with nonketotic hyperglycemia that subcortical T2 hypointensity is the only characteristic one. Finding this MRI feature is highly valuable in early diagnosis and treatment.
Methods:
Our patient was a 60-year-old female, a case of type 2 diabetes mellitus. She was brought to Emergency Room (ER) with focal colonic status epilepticus of right face and arm associated with confusion and drowsiness progressed over 2 weeks prior to admission. At first, acyclovir was started alongside anti-seizure medication with doubt of herpes encephalitis but antiviral was discontinued after normal LP result and characteristic MRI features.
Results:
Subcortical T2 hypointensity in left temporal and insular lobe was seen on first MRI that was resolved on follow up MRI after she was treated.
Conclusion:
Epilepsia partialis continua in the setting of non ketotic hyperglycemia should be differentiated from that in herpes encephalitis in a diabetic patient presenting with subacute confusional state and focal status epilepticus considering characteristic MRI finding of subcortical T2 hypointensity.
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