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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

Term:abnormal extraembryonic coelom morphology
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Accession:MP:0011200 term browser browse the term
Definition:any structural anomaly of the fluid-filled spaces formed within the mass of extraembryonic mesoderm that later fuse to become a large extraembryonic cavity
Comment:Note that there is a great deal of confusion in the literature regarding the term exocoelomic cavity. It is frequently and erroneously used as a synonym for primary yolk sac cavity.
Synonyms:exact_synonym: abnormal chorion cavity morphology;   abnormal chorionic cavity morphology;   abnormal exocoelom morphology;   abnormal exocoelomic cavity morphology;   abnormal extraembryonic celom morphology

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  mammalian phenotype 5415
    embryo phenotype 11
      abnormal extraembryonic tissue morphology 9
        abnormal extraembryonic coelom morphology 0
          absent extraembryonic coelom 0
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