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HUMAN PHENOTYPE - ANNOTATIONS

The Human Phenotype Ontology (HPO) is downloaded weekly from http://compbio.charite.de/hudson/job/hpo/lastStableBuild/artifact/ontology/release/hp.obo. The file downloaded is considered the "last stable build" available for the ontology. For more about the HPO, view their website at http://www.human-phenotype-ontology.org/.
Term:Arachnoid cyst
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Accession:HP:0100702 term browser browse the term
Definition:An extra-parenchymal and intra-arachnoidal collection of fluid with a composition similar to that of cerebrospinal fluid.
Comment:Arachnoid cysts can be found on the brain, or on the spine. Intracranial arachnoid cysts usually occur adjacent to the arachnoidal cistern. Spinal arachnoid cysts may be extradural, intradural, or perineural.
Synonyms:exact_synonym: Fluid-filled sac located in membrane surrounding brain or spinal cord
 related_synonym: ARACHNOID CYSTS
 xref: MESH:D016080;   SNOMEDCT_US:33595009;   UMLS:C0078981


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  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of the nervous system 0
        Abnormal nervous system morphology 0
          Morphological central nervous system abnormality 0
            Abnormal meningeal morphology 0
              Abnormal arachnoid mater morphology 0
                Arachnoid cyst 0
                  Cerebellopontine angle arachnoid cyst 0
                  Intraventricular arachnoid cyst 0
                  Spinal arachnoid cyst 0
                  Suprasellar arachnoid cyst 0
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