abnormal cartilage morphology abnormal long bone epiphyseal plate morphology MP:0003055 MPheno.ontology abnormal long bone epiphysial plate morphology abnormal long bone growth plate morphology any structural anomaly of the cartilaginous center of ossification located at one or both ends of bones between the epiphysis (end) and the diaphysis (shaft) of long bones; longitudinal growth of the bone occurs at the plate during development in children and juveniles abnormal long bone morphology abnormal epiphyseal plate morphology