|Author||Rajesh, Bhagavatheeswaran ♦ Kesavadas, C. ♦ Ashalatha, R. ♦ Thomas, Bejoy|
|Source||Sree Chitra Tirunal Institute for Medical Sciences & Technology|
|Subject Domain (in DDC)||Technology ♦ Medicine & health ♦ Diseases|
|Subject Domain (in MeSH)||Nervous System Diseases ♦ Diseases|
|Abstract||Background: Rasmussen encephalitis (RE) is a rare devastating disease of childhood causing progressive neurological deficits and intractable seizures, typically affecting one hemisphere. Characteristic MRI features include progressive unihemispheric focal cortical atrophy and grey- or white-matter high-signal changes and basal ganglion involvement, particularly of the caudate nucleus. Objective: To analyse the pattern of involvement of different brain structures in a series of patients with RE and to attempt clinical correlation. Materials and methods: We reviewed the medical records and neuroimaging data of 12 patients diagnosed with RE satisfying the European Consensus Statement diagnostic criteria. Results: The disease manifested as seizures in all patients and was refractory; epilepsia partialis continua was a notable feature (nine patients). Hemiparesis of varying grades was noted in all but one patient; none had extrapyramidal signs. Neuroimaging showed cortical involvement in the insular/periinsular regions in 11 patients. Caudate atrophy was noted in ten patients. Putaminal atrophy was seen in nine patients, six of whom had additional hyperintense signal changes. Conclusions: Our study highlights frequent putaminal atrophy and signal changes in RE, which suggests a more extensive basal ganglion involvement than emphasized previously. Recognition of putaminal changes may be a useful additional tool in the radiological diagnosis of RE.|
|Education Level||UG and PG|
|Learning Resource Type||Article|
|Educational Framework||Medical Council of India (MCI)|
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