Since 1975 we have observed 68 patients with Cushing syndrome, 48 out of which with an ACTH-independent disease and 20 with an ACTH-dependent one, due to hypophisary adenoma. Out of the latter group of patients, which had a relapse of the disease after a previous trans-sfenoidal procedure, 16 underwent an open bilateral adrenalectomy and 4 a laparoscopic monolateral or bilateral adrenalectomy. Patients from the former group had an open or laparoscopic adrenalectomy, or a bilateral adrenalectomy in case of the rare bilateral diseases, as McCune-Albright syndrome. All patients had a complete healing, except for 2 patients affected by McCune-Albright syndrome who died for cardiopulmonary complications. We conclude that bilateral adrenalectomy plays a fundamental role in the treatment of Cushing disease, after the failure of the trans-sfenoidal procedures. This surgical therapy has been certainly improved by the introduction of the laparoscopic techniques, which allowed us to exert bilateral adrenalectomies in two times with a significant reduction of perioperative morbidity and mortality because of the less severe traumatism and the absence of addisonian complications.