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.
presence of multiple cyst-like blood-filled lakes or cavities that lack endothelial linings within parenchymatous organs, typically found in the liver, spleen, bone marrow and lymph nodes; also described in other organs such as lungs, kidneys, parathyroids and pancreas