FINDINGS Figure 198-1. Coronal FLAIR through the hippocampus. There is asymmetry of the hippocampus. The right hippocampus is smaller than the left and hyperintense (arrow). Figure 198-2. Coronal T1WI through the hippocampus. Subtle decreased volume with flattened surface of the right hippocampus (arrow).
DIFFERENTIAL DIAGNOSIS Status epilepticus, mesial temporal sclerosis, choroidal fissure cyst, low-grade primary glioma, dysembryoplastic neuroepithelial tumor (DNET), posterior cerebral artery (PCA), or anterior choroideal artery (AChoA) infarct, hippocampal malrotation.
DIAGNOSIS Mesial temporal sclerosis (MTS).
DISCUSSION
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