Leydig cell tumor


Ley·dig cell tumor

(lī'dig), a testicular and, less commonly, ovarian neoplasm composed of Leydig cells, usually benign but may be malignant; may secrete androgens or estrogens. Synonym(s): interstitial cell tumor of testis

Ley·dig cell tu·mor

(lī'dig sel tū'mŏr) A testicular and, less commonly, ovarian neoplasm composed of Leydig cells, usually benign but may be malignant; may secrete androgens or estrogens. Causes gynecomastia in adults and precocious sexual development in prepubescents.