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The Mouse Adult Gross Anatomy Ontology and Mammalian Phenotype Ontology are downloaded weekly from the Mouse Genome Informatics databases at Jackson Laboratories ( For more information about these ontologies, see the MGI Publications Page at

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Accession:MP:0001891 term browser browse the term
Definition:excessive accumulation of cerebrospinal fluid in the brain, especially the cerebral ventricles, often leading to increased brain size and other brain trauma
Synonyms:exact_synonym: hydrocephalus;   hydroencephaly
 alt_id: MP:0000916

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hydrocephaly term browser
Symbol Object Name Evidence Notes Source PubMed Reference(s) RGD Reference(s) Position
G Ccdc39 coiled-coil domain 39 molecular ruler complex subunit IMP RGD PMID:31771992 RGD:150521527 NCBI chr 2:116,665,651...116,703,354
Ensembl chr 2:116,665,261...116,703,350
JBrowse link
G Ccdc39em1Jgn coiled-coil domain containing 39; CRISPR/Cas9 induced mutant 1, Jgn IMP RGD PMID:31771992 RGD:150521527

Term paths to the root
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Term Annotations click to browse term
  mammalian phenotype 5407
    nervous system phenotype 374
      abnormal nervous system morphology 215
        abnormal brain morphology 139
          abnormal brain development 16
            hydrocephaly 12
              non-obstructive hydrocephaly 0
              obstructive hydrocephaly + 0
paths to the root