abnormal cranial foramen ovale morphology large cranial foramen ovale 2017-11-23T15:09:14Z MPheno.ontology MP:0030432 enlarged cranial foramen ovale enlarged foramen ovale cranii increased size of the oval-shaped opening in the middle cranial fossa located at the posterior base of the greater wing of the sphenoid bone, lateral to the lingula of the mandible increased cranial foramen ovale size increased size of the foramen ovale of skull