The term Gyrus occipitotemporalis medialis (Nomina) refers either to a transitional zone of cerebral cortex that occupies a caudal portion of the parahippocampal gyrus and a rostral portion of the lingual gyrus, or to a gyrus adjacent to those gyri and separated from them by the collateral sulcus, i.e., a subdivision of the fusiform gyrus. In Nomina-1983 it is described as a convolution that is distinct from the lingual gyrus but continuous with it and the parahippocampal gyrus. Semantic and factual conflicts regarding the structure and nomenclature of this area are discussed in Anthoney-1994.