Leydig cell tumor
Findings
No curated finding names Leydig cell tumor yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
A sex cord-stromal tumor occurring in the testis and rarely in the ovary. It is predominantly or completely composed of Leydig cells which may contain crystals of Reinke. In males it usually presents as a painless testicular enlargement and it may be associated with gynecomastia and decreased libido. The majority of the cases have a benign clinical course. Approximately 10% of the cases have a malignant clinical course and metastasize. In females it may be associated with androgenic manifestations and it follows a benign clinical course.
Definition from the Mondo Disease Ontology (MONDO:0006266), read 2026-09-29. CC BY 4.0.
Where it sits
- A kind of
Other names
4 names
Resolves to: Leydig cell tumor
- Also called
- interstitial cell neoplasminterstitial cell tumorinterstitial cell tumourLeydig cell neoplasm