Adrenal Disease in Ferrets: Causes, Signs, Treatment & Prevention
suspected. This is a blood test that evaluates the levels of hormones and steroid production. The test is not always 100% correct, and has been known to result in false positives and false negatives, but it is the only blood test available to test for adrenal disease.
Radiographs (x-rays) and ultrasounds help determine whether or not adrenal disease is present, but can be misleading. Diseased adrenal glands can be normal in size and shape and, therefore, an x-ray or ultrasound may not raise any concerns. However, ultrasounds can be helpful in showing prostate enlargement (a complication of adrenal disease in male ferrets).
When it comes to diagnosis, if your ferret is displaying any of the obvious signs, your veterinarian will probably suggest beginning treatment rather than spending money on expensive tests and other diagnostic measures. Ferrets can suffer from adrenal disease for a long time before actually showing symptoms, so no matter how your veterinarian arrives at the diagnosis, it’s important to commence treatment immediately after the diagnosis has been made.
TREATMENT
Your veterinarian may opt to use any of the following options to treat your ferret’s adrenal disease:
Surgery
This is the most common treatment for adrenal disease, and is the only way to completely remove the tumor. It is also the most recommended treatment by most veterinarians. If your veterinarian seems at all hesitant about the surgery or does not perform surgeries, ask for a recommendation to a more experienced ferret veterinarian.
If your ferret has already had surgery to remove one gland and adrenal tumors develop in the remaining gland, your veterinarian may decide that surgery is not the best choice. Ferrets that have both glands removed may develop Addison’s disease, which is a severe or complete deficiency of the hormones made in the adrenal glands. Your veterinarian will probably want to check your ferret’s cortisol (a hormone produced by the adrenal glands) levels within three days of the surgery.
Though surgery is the only option that could completely rid your ferret of adrenal disease, it is important for you to know that there are risks involved with surgery.
If the tumor is on the right adrenal gland, your veterinarian may choose not to remove it. The right adrenal gland is directly adjacent to the vena cava, the largest vein in the body, and there could be serious complications.
If any microscopic piece of affected adrenal tissue remains, the tumor can grow back either on the same side, or the opposite side.
There is always a chance that the ferret may not make it through the surgery or through the recovery period in the first few days after the procedure is done.
Discuss all of the risks extensively with your veterinarian before making any decisions. Some ferrets are just not good surgical candidates, either due to age, health or both, and with these ferrets your veterinarian will probably want to go the medical treatment route.
Medical
Your veterinarian may suggest medical treatment options in cases where surgery cannot be performed, either due to the health of the ferret or other issues. These options include:
Lupron Depot Injections
Lupron Depot may be prescribed at 1 month, 3 month, or 4 month intervals. “Depot” refers to the fact that the entire dosage is released over the given time period. This means that your ferret will need to get this shot at the appropriate time for the rest of his life. Lupron may shrink the tumor, but in most cases, it only affects the symptoms.
Even if all symptoms cease, Lupron must continue to be administered. Lupron is a synthetic version of GnRH (gonadotropin release hormone), and it works by desensitizing the pituitary gland, which stops the production of the hormones that are overstimulating the adrenal glands. So if the Lupron shots are stopped, the pituitary gland resumes its normal function, and all of the problems start again.
If your veterinarian recommends doing surgery, but you can’t do it right away for whatever reason, some veterinarians may recommend that the ferret receive Lupron in the meantime. This may prevent the disease from progressing any further and, at the very least, may make your ferret more comfortable by alleviating some of the symptoms.
Melatonin Implants
Melatonin is a natural hormone that serves many functions in your ferret’s body, one of which is to inhibit the release of GnRH (gonadotropin releasing hormone). Less GnRH means that the pituitary gland releases fewer hormones, which means that the adrenal glands are stimulated less.
Melatonin can be used in oral (liquid or pill) or implant form.