The tumour is invasive with a high mortality rate. The cancerous cells may invade regional lymph nodes and travel to the spine, lungs, liver and spleen via the bloodstream. The tumour may go unnoticed in the early stages and an abnormal mass or swelling in the region of the anus perineal area may only be recognised when the growth is large. Other signs of anal sac adenocarcinoma include problems with defecation, local pain or irritation, excessive drinking and urination, hind limb weakness and lethargy. The tumour cells produce a protein, parathyroid hormone related protein, which causes increased calcium levels in the blood, and may lead to hypercalcaemia.
Do Field Springer Spaniels have problems with Anal Glands?
SPRINGER (ANAL GLANDS!!)
This high-spirited tail-wagger needs at least one long vigorous run every day. Without exercise an English Springer Spaniel can be a boisterous handful, especially when young. His opinion of strangers varies from friendly to reserved. Most are good watchdogs, but not guardians.
Anal Gland Cancer in Dogs
From time to time your dog's anal sacs may become impacted and it may be necessary for you to give your Cocker Spaniel a helping hand to clear them. Learn more about your dog's anal glands, what can cause a blockage and how to express them yourself. Your dog's nal sacs also known as anal glands are two small scent glands inside your pet's bottom, just below and to either side of the anal opening. When things are working well, and if your dog's poop is solid enough, it will press against the glands as he poops. This pressure releases a small secretion; just enough to coat your dog's poop.
The anal glands are small sacs found on either side of the anal opening of your dog. The lining of the sacs produces a small amount of liquid, which is eliminated each time your dog defecates. The development of a tumor in this area can be significant; even with the presence of a small growth there is the definite possibility that the tissues will be invaded and the cancer will spread metastasize. In some cases, the tumor can cause hypercalcemia elevated blood calcium , leading to kidney failure. An anal gland tumor is not always obvious to the eye as the tumor may be growing inward.