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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

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Accession:HP:0033808 term browser browse the term
Definition:A cystic structure arising from the epididymis, rete testis or efferent ductuli. These structures are filled with spermatozoa containing fluid that may be milky. These cysts are usually outside the tunica vaginalis and, as with hydrocele, transluminate easily.
Comment:Spermatoceles are frequently seen on scrotal ultrasound as an incidental finding and may be present in up to 30% of patients.

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  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of the genitourinary system 0
        Abnormality of the genital system 0
          Abnormal reproductive system morphology 0
            Abnormality of the male genitalia 0
              Abnormality of male internal genitalia 0
                Abnormality of the epididymis 0
                  Spermatocele 0
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