Hemangiosarcoma is quite common in dogs, and more so in certain breeds of dogs including German Shepherds and Golden Retrievers. It also occurs in cats, but is much more rare. Dogs with hemangiosarcoma rarely show clinical signs until the tumor has become very large and has metastasized. Typically, clinical signs are due to hypovolaemia after the tumor ruptures, causing extensive bleeding. Owners of the affected dogs often discover that the dog has hemangiosarcoma only after the dog collapses.
The tumor most often appears on the spleen, right heart base, or liver, although varieties also appear on the skin or in other locations. It is the most common tumor of the heart, and occurs in the right atrium. Here it can cause right-sided heart failure, arrhythmias, pericardial effusion, and cardiac tamponade. Hemangiosarcoma of the spleen or liver is the most common tumor to cause hemorrhage in the abdomen. Hemangiosarcoma of the … Read the rest
A mammary tumor is a tumor originating in the mammary gland. It is a common finding in older female dogs that are not spayed (the incidence rate is one in 4 in unspayed female dogs over the age of 4), but they are found in other animals as well. The mammary glands in dogs are associated with their nipples and extend from the underside of the chest to the groin on both sides of the midline. There are many differences between mammary tumors in animals and breast cancer in humans, including tumor type, malignancy, and treatment options.
Mammary tumors can be small, simple nodules or large, aggressive, metastatic growths. With early detection and prompt treatment, even some of the more serious tumors can be successfully treated.
There are multiple types of mammary tumors in dogs. Approximately 50% of all mammary tumors in dogs are benign, and the other 50% are … Read the rest
The presence of diarrhea in dogs should always be cause for concern. There are a plethora of causes of both acute and chronic diarrhea in dogs, including infectious causes, toxins, inflammation or disease of the intestinal tract and parasites. Diarrhea can have a devastating effect on the body due to its dehydrating effect, and left untreated it can lead to blood sugar depletion, circulatory collapse and death. Although mild cases of diarrhea may resolve without intervention, diarrhea accompanied by vomiting, lethargy or any other behavioral changes should be treated as a medical emergency. Because the severity of the cause of diarrhea is not immediately present at onset, prompt medical attention must be sought to quickly diagnose and treat the underlying problem.
Diarrhea is always a symptom of an underlying problem, and not a disease in itself. Diarrhea can be used to describe a varying severity of a problem, from occasional … Read the rest