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Hippocampal and limbic terminology.

1 MR imaging of the hippocampus and associated limbic structures is important in the evaluation of epilepsy, Alzheimer disease, and schizo-phrenia. The MR imaging of this region has already been described in detail (1-3). Because of the complex anatomy, terminology is often redundant and confusing. Nomenclature by anato-mists was first based on appearance of structures as viewed through the lateral ventricle. These terms were then sometimes applied inappropriately to structures seen on sectional slices. More recently, histologic investigations have helped elucidate the origin and relationships of macroscopic structures. The following tables (Tables 1 and 2; see pages 944 and 945) were compiled to help clarify terminology and by doing so, further understanding of the hippocampus and limbic system. The terminology in these tables is based principally on work by Duvernay (4-8). References 1. Naidich TP , Daniels DL, Haughton VM , et al. Hippocampa l formation and related structures of the limbic lobe: anatomic-MR correlation. I. Su rface features and coronal sections.