Mammillary Body Atrophy in Temporal Lobe Epilepsy With Hippocampal Sclerosis.

We observed ipsilateral MB atrophy in about one-quarter of patients with TLE and HS. The severity of subcortical limbic structure abnormalities was greater in patients without MB atrophy. These findings suggest that MB atrophy in TLE with HS is not rare, but it has little clinical significance.