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The Human Phenotype Ontology (HPO) is downloaded weekly from The file downloaded is considered the "last stable build" available for the ontology. For more about the HPO, view their website at

Term:Mesenteric cyst
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Accession:HP:0030451 term browser browse the term
Definition:A closed fluid filled sac originating from the mesentary.
Comment:A mesenteric cyst is defined as any cyst located in the mesentery; it may or may not extend into the retroperitoneum, which has a recognizable lining of endothelium or mesothelial cell. Mesenteric cyst can occur anywhere in the mesentery of gastrointestinal tract from duodenum to rectum. Mesenteric cysts can be simple or multiple, unilocular or multilocular, and they may contain hemorrhagic, serous, chylous, or infected fluid. They can range in size from a few millimetres to few cm in diameter, however, at times may be so large that it may mimic tubercular ascites.
Synonyms:xref: MESH:D008639;   SNOMEDCT_US:253802003;   SNOMEDCT_US:27970007;   UMLS:C0025467

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  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of the digestive system 0
        Abnormality of the abdominal organs 0
          Abnormality of mesentery morphology 0
            Mesenteric cyst 0
              Chylolymphatic mesenteric cyst 0
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