has part has part has_part characteristic of part of has modifier abnormal hippocampus morphology abnormal dentate gyrus morphology abnormal dentate gyrus of hippocampal formation morphology abnormal fascia dentata morphology dentate gyrus dysplasia MP:0000812 abnormal area dentata morphology MPheno.ontology any structural anomaly of one of two interlocking gyri of the hippocampus formation that contains granule cells, which project to the pyramidal cells and interneurons of the CA3 region of the ammon gyrus morphology abnormal dentate gyrus of hippocampal formation