Human Phenotype Ontology 
Parent Node:
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Abnormality of the cerebrospinal fluid (HP:0002921)help
..Starting node
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Extra-axial cerebrospinal fluid accumulation (HP:0012510)help
Term ID:12510
Name:Extra-axial cerebrospinal fluid accumulation
Definition:An increased amount of cerebrospinal fluid (CSF) in the subarachnoid space.
Comments:
Reference:HP:0012510
MSeqDR-LSDB(LS)
& Disease (OMIM):
                  super
       Child Nodes:

 Sister Nodes: 
..expandAbnormal CSF biopterin level (HP:0040207) help
..expandAbnormal CSF dopamine level (HP:0012654) help
..expandAbnormal CSF lactate level (HP:0030085) help
..expandAbnormal CSF neopterin level (HP:0040203) help
..expandCSF pleocytosis (HP:0012229) help
..expandDecreased CSF homovanillic acid (HVA) (HP:0003785) help
..expandHydrocephalus (HP:0000238) help
..expandHypoglycorrhachia (HP:0011972) help
..expandIncreased CSF interferon alpha (HP:0009709) help
..expandIncreased CSF protein (HP:0002922) help
..expandLow CSF 5-methyltetrahydrofolate (HP:0012446) help
 

Human Phenotype Ontology(HPO) is developed by the Human Phenotype Ontology Consortium.