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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:pilar cyst
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Accession:MP:0009042 term browser browse the term
Definition:presence of one or more epithelial cysts of the skin arising from the outer root sheath of the hair follicle
Synonyms:exact_synonym: pilar cysts;   trichilemmal cyst;   trichilemmal cysts

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Path 1
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  mammalian phenotype 5402
    growth/size/body region phenotype 820
      abnormal cyst 8
        epithelioid cyst 0
          pilar cyst 0
Path 2
Term Annotations click to browse term
  mammalian phenotype 5402
    integument phenotype 171
      abnormal skin adnexa morphology 169
        abnormal pilosebaceous unit morphology 11
          abnormal hair follicle morphology 8
            abnormal hair follicle outer root sheath morphology 0
              pilar cyst 0
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