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MR imaging, diffusion-weighted imaging and MR spectroscopy findings in acute rapidly progressive subacute sclerosing
Kader Karli Oguz1, Asli Celebi, Banu Anlar
1Hacettepe University, Faculty of Medicine, Department of Radiology, Ankara, Turkey.
Abstract:
We are presenting two cases with subacute sclerosing panencephalitis of acute and rapid form, which were initially diagnosed as acute viral encephalitis. We obtained both diffusion-weighted imaging and magnetic resonance spectroscopy, whose findings suggested the presence of acute inflammatory and metabolic changes with peculiar distribution, which were not observed on conventional MR imaging. These techniques might help to demonstrate the extent and progression of the panencephalitis.
Insights
Subacute sclerosing panencephalitis (SSPE) can mimic viral encephalitis. Advanced MRI techniques like diffusion-weighted imaging and MR spectroscopy reveal characteristic inflammatory and metabolic changes in rapid SSPE cases.
Area of Science:
- Neurology
- Radiology
- Neuroimaging
Background:
- Subacute sclerosing panencephalitis (SSPE) is a rare, progressive neurological disorder.
- Acute and rapid forms of SSPE can be misdiagnosed as acute viral encephalitis.
- Early and accurate diagnosis is crucial for managing SSPE.
Observation:
- Two cases of acute and rapid SSPE initially diagnosed as viral encephalitis were studied.
- Conventional MRI did not reveal specific findings for SSPE in these cases.
- Advanced neuroimaging techniques, diffusion-weighted imaging (DWI) and magnetic resonance spectroscopy (MRS), were employed.
Findings:
- DWI and MRS revealed unique inflammatory and metabolic changes in the brain.
- These changes had a peculiar distribution pattern.
- The findings were not apparent on conventional magnetic resonance imaging (MRI).
Implications:
- DWI and MRS can aid in the early diagnosis of SSPE.
- These advanced imaging modalities may help differentiate SSPE from viral encephalitis.
- Utilizing DWI and MRS can improve the assessment of SSPE extent and progression.
