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![]() ![]() ![]() Features Behavior Health Disease Ask Dr. Richards Mind of Your Cat Short Takes ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Cushing’s Syndrome Diagnosis can be a challenge, but here are the signs.
By Deborah Nason
Because Cushing’s Syndrome is so uncommon in cats, no breed association has been identified. Signs include: increased appetite, excessive drinking and urination, pot-bellied appearance, recurring infections (skin, urinary tract or systemic), hair loss which can be quite subtle, e.g. only affecting the ears. A severe sign is thin skin, which tears spontaneously, due to a decrease in collagen, a strength-giving component of the skin. “It is pretty dramatic if it occurs,” she says. Dr. Behrend says it is sometimes difficult to determine which signs are diabetes-related and which are Cushing’s-related. She also notes that cats may often be severely affected by the time they are diagnosed. “Diagnosis can be a challenge,” says Dr. Behrend. “No test is perfect.” Testing usually consists of two or three different blood tests to confirm the diagnosis. The changes in the test results may be so subtle, she adds, that retesting weeks later is sometimes needed. “Once we decide it is indeed Cushing’s, we need to determine which form it is, maybe even using ultrasound to look at the adrenal glands, the major source of cortisol,” she explains. “In the pituitary-dependent form, both adrenal glands get big and plump, while with the adrenal tumor type, only one gland is enlarged.” The drugs used to treat Cushing’s in other species don’t work in most cats. Says Dr. Behrend, “Because of this, the preferred treatment for the pituitary-dependent form is to remove both adrenal glands and then treat the cats with hormone replacement therapy for the rest of their lives.” She adds, “if the problem is an adrenal tumor, removal of the involved gland is recommended.” Due to the low numbers of reported cases, there are no solid statistics available regarding life expectancy after these treatments, but some cats do quite well. In about 50 percent of the cats, the diabetes resolves when their Cushing’s Syndrome is controlled. |
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