The Mouse Adult Gross Anatomy Ontology and Mammalian Phenotype Ontology are downloaded weekly from the Mouse Genome Informatics databases at Jackson Laboratories (ftp://ftp.informatics.jax.org/pub/reports/index.html). For more information about these ontologies, see the MGI Publications Page at http://www.informatics.jax.org/mgihome/other/publications.shtml.
greater than the expected number of rare testicular tumors of the male gonadal interstitium, occurring in a specific population in a given time period; Leydig cell tumors are frequently hormonally active, leading to feminizing or virilizing syndromes; Leydig cell tumors comprise 1-3% of all testicular neoplasms, can be pure or mixed with other sex cord-stromal or germ cell tumors, and are usually benign, although malignant variants also occur
Synonyms:
exact_synonym:
increased Leydig cell tumour incidence
related_synonym:
Leydig cell tumor; Leydig cell tumour; interstitial cell tumor of testis; interstitial cell tumour of testis