Research: Diagnosis and Treatment of Cushing’s Disease in dogs
Hanson
JM, Teske E, Voorhout G, Galac S, Kooistra HS, Meij BP. Prognostic factors for outcome after
transsphenoidal hypophysectomy in dogs with pituitary-dependent
hyperadrenocorticism. J
Neurosurg. 2007 Oct;107(4):830-40. 
Zeugswetter
F, Hoyer MT, Pagitz M, Benesch T, Hittmair KM, Thalhammer JG. The
desmopressin stimulation test in dogs with Cushing's syndrome. Domest
Anim Endocrinol. 2007 Aug 27. 

de
Fornel P, Delisle F, Devauchelle P, Rosenberg D. Effects of radiotherapy on pituitary
corticotroph macrotumors in dogs: a retrospective study of 12 cases. Can
Vet J. 2007 May; 48(5):481-6. 
This
presentation discusses the different drug treatments for Cushing’s:
Church, David. Hyperadrenocorticism, Standards of Care. 31st World Small Animal Veterinary Congress, 2006.