Magnetic resonance imaging evaluation of focal computed tomography abnormality in epilepsy.
Sixty-seven patients with epilepsy and isolated enhancing computed tomography (CT) scan lesion were studied with magnetic resonance imaging (MRI). Fifty-six patients (83.5%) had partial seizures and 11 (16.4%) had generalized seizures. Four distinct groups were identified by MRI: nonspecific 16 cases (23.8%), tuberculoma 38 cases (56.7%), cysticercosis 12 cases (17.9%), and abscess 1 case (1.4%). Patients in the non-specific group had lesions that were hyperintense on T2 images and hypointense or isointense on T1 images. Such lesions resolved completely in 5 months with serial MRIs while the patients were receiving antiepileptic drugs (AEDs). Virologic studies, including cerebrospinal fluid (CSF) serology, are suggested for patients with such MRI lesions.
Puri
V
V
Department of Neurology, GB Pant Hospital, New Delhi, India.
Gupta
R K
RK
D001921:Brain / Q000000981:diagnostic imaging*; D001922:Brain Abscess / Q000175:diagnosis / Q000000981:diagnostic imaging; D001927:Brain Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000469:parasitology; D003551:Cysticercosis / Q000175:diagnosis / Q000000981:diagnostic imaging; D004827:Epilepsy / Q000175:diagnosis* / Q000000981:diagnostic imaging; D006801:Humans; D008279:Magnetic Resonance Imaging; D014057:Tomography, X-Ray Computed