“Dogs are not our whole life, but they make our lives whole.” — Roger Caras
How Long Can A Dog Live With Adrenal Cancer

Caring for a Dog with Adrenal Cancer

The pair of glands located above each kidney are called the Adrenal Glands. They are responsible for producing hormones that are needed by certain organs and induce metabolic activities in the body, like the hormone Cortisol.

Tumors can grow from the adrenal cortex when there is an abnormal growth of cells. This abnormality will cause overproduction of different hormones in the body. Some tumors can be malignant or benign.

Causes of Adrenal Cortex Tumor

Like any tumor, it is hard to pinpoint a single reason for the development of adrenal cortex tumors. There are plenty of factors that can cause this abnormality that may be genetic or environmental.

Signs of Adrenal Cortex Tumors

Since there is an abnormality in the production of hormones your pet may experience an increase in drinking and urination, bloating, and hair loss. Other signs may include losing appetite, weight, and lethargy. There are some rare signs that might occur like calcium deposits in the skin and wasting away of muscles.


Your vet will recommend a CT scan if your dog is experiencing the above symptoms. Ultrasound and blood tests will also be needed for further diagnosis. When the adrenal gland is enlarged to more than 1.5cm it is identified as a mass and will be tested for an increase in cortisol levels or increase in adrenaline which may produce different symptoms.
Both adrenal glands may be enlarged but most cases will only have a tumor on one of the adrenal glands.

Cancer Progression

Although most tumors in the adrenal gland are benign and will not spread to other areas of the body, it is important to get treatment as the tumor may grow and your pet will continue to experience the symptoms of the adrenal cortex tumor.

If the tumor is malignant it will invade the surrounding vessels and tissues. Early diagnosis and treatment are needed to prevent the development of blood clots in the vessels that will make it hard to proceed with the surgery. Although more dangerous, malignant tumors rarely spread to other parts of the body.

Treatment for Adrenal cortex tumor

Drug therapy is the first step and most common treatment for benign adrenal cortex tumors. This medication aims to inhibit the hormone pathways from the pituitary gland.

If the tumor is malignant, surgery may be needed. Before surgery, your dog will undergo blood tests, urinalysis, x-rays, and ultrasound.

Complications in surgery may arise like hemorrhage as the adrenal gland has a close relationship with the blood supply of the abdominal area. Masses that produce an increase in adrenaline may also cause a spike and drop in blood pressure level during the surgery. While masses that produce an increase in cortisol will delay healing. Certain medications will be provided to aid these complications.

After these procedures to treat and remove the adrenal cortex tumors, your dog will need a complete healing treatment to get back in his healthy, normal lifestyle. You will need to dedicate additional attention and treatment to this change of diet and lifestyle for a happy recovery.


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