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Adenoma de hipófise em uma gata com hiperadrenocorticismo / Pituitary adenoma in a cat with hyperadrenocorticism

Corgozinho, Katia Barão; Belchior, Cristiane; Souza, Raquel Calixto de; Leite, Juliana da Silva; Ferreira, Ana Maria Reis.
Acta sci. vet. (Online); 38(2): 205-208, 2010.
Artigo em Português | VETINDEX | ID: vti-5003


Feline Cushings syndrome (FCS) is a disorder of excessive cortisol secretion by the adrenal glands and is rare in cats. The most frequently observed clinical signs are polyuria, polydipsia, and polyphagia which are also consistent with diabetes mellitus. These diabetic cats are often insulin resistants. The dexamethasone suppression test is considered the test of choice for the diagnosis of hyperadrenocorticism. The majority of cats with naturally occurring Cushings syndrome have pituitary-dependent hyperadrenocorticism and it is caused by functional microadenoma or macroadenoma pituitary. Computed tomography or magnetic resonance imaging is helpful in diagnosis of pituitary tumors. Treatments of pituitary-dependent hyperadrenocorticism include surgery of the pituitary or adrenals, radiation of the pituitary, and medical therapies. Bilateral adrenalectomy continues to represent the best long-term therapeutic strategy until hypophysectomy becomes more widely available. This paper reports a cat with macroadenoma pituitary causing hiperadrenocorticism and insulin resistance.(AU)
Biblioteca responsável: BR68.1
Localização: BR68.1