The Mouse Adult Gross Anatomy Ontology and Mammalian Phenotype Ontology are downloaded weekly from the Mouse Genome Informatics databases at Jackson Laboratories (ftp://ftp.informatics.jax.org/pub/reports/index.html). For more information about these ontologies, see the MGI Publications Page at http://www.informatics.jax.org/mgihome/other/publications.shtml.
a posterior pituitary gland displaced distally in the infundibulum (pituitary stalk) due to defective neuronal migration during embryogenesis, tumors, trauma, or surgical transection of the pituitary stalk; may present with an empty pituitary fossa, hypoplasia or absence of the infundibular stalk and resultant short stature due to growth hormone deficiency; the location of the ectopic lobe can vary, but it is most commonly located along the median eminence in the floor of the third ventricle