title: Leydig cell tumor in identical twin.
abstract: A case is presented of an identical twin who had an interstitial cell tumor of the testis removed, and comparison is made with his identical brother over an ensuing six-year period. The dramatic effects of the interstitial cell tumor are clearly shown in the comparison of the two males over this six-year period. To our knowledge this is the only such case in the world literature.
mesh_terms: D000293:Adolescent; D002648:Child; D004200:Diseases in Twins; D005260:Female; D006130:Growth Disorders / Q000209:etiology; D006801:Humans; D007984:Leydig Cell Tumor / Q000503:physiopathology* / Q000601:surgery; D008297:Male; D011247:Pregnancy; D011629:Puberty, Precocious / Q000209:etiology; D012741:Sexual Maturation; D013736:Testicular Neoplasms / Q000503:physiopathology* / Q000601:surgery; D014430:Twins, Monozygotic