An extremely rare case of a 39-year-old man with Nelson's syndrome and
Nelson's syndrome paratesticular tumours is presented, The patient ha
d undergone bilateral adrenalectomy at the age of 23 years for Gushing
's syndrome. Later he developed skin and mucosal hyperpigmentation, Ne
lson's syndrome was diagnosed, and he underwent transfrontal hypophyse
ctomy, At age 29, the presence of paratesticular tumours was noted whi
ch were excised together with the left testis, The preoperative levels
of testosterone, produced by the paratesticular tumours, were extreme
ly high; they fell after surgery.