the authors describe three cases of cushing ' syndrome , due to nodular hyperplasia , simple hyperplasia and adenocarcinoma respectively , and the most useful approaches ( dexamethasone , metopirona , insulinic hypoglycemia , cortisol rhythm , catheterism and assessment of urinary free cortisol ) for diagnosis and etiology of cushing 's syndrome .
C0011777
dexamethasone
C0010481
cushing 's syndrome