testicular Leydig cell tumor
MONDO:0003124Mondo
Findings
No curated finding names testicular 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 that arises from the testis and is characterized by the presence of cells that resemble the successive stages of development of Leydig cells. It usually presents as a painless testicular mass. Gynecomastia is present in approximately thirty percent of the cases. Libido may be decreased. In children, precocious puberty may be present. A minority of cases exhibit malignant characteristics.
Definition from the Mondo Disease Ontology (MONDO:0003124), read 2026-09-29. CC BY 4.0.
Where it sits
- Narrower terms (1)
Other names
7 names
Resolves to: testicular Leydig cell tumor
- Also called
- Leydig cell neoplasm of testisLeydig cell neoplasm of the testisLeydig cell tumor of testisLeydig cell tumour of testistesticular Leydig cell neoplasmtestis Leydig cell tumortestis Leydig cell tumour