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Tumors

  • Osteosarcoma is the most common malignant bone tumor diagnosed in veterinary practice. It is considered similar to pediatric osteosarcoma in humans, a bone cancer that usually develops during the period of rapid growth that occurs in adolescence, as a teenager matures into an adult.

  • The ovary contains several different cell types. These include the germ cells, which make the eggs, the supporting (stromal) and hormone-producing cells as well as epithelium, connective tissue and blood vessels.

  • The pancreas is a glandular organ located close to the liver, the stomach, and the small intestine. It has two main functions, an exocrine function and an endocrine function.

  • A “tumor” is a lump. Not all are cancerous. Panniculitis is usually visible as a lump but it is an inflammation of the subcutaneous fatty tissue and is not cancerous.

  • Papillomas are benign, sometimes multiple, tumors caused by viruses. They are commonly known as “warts”. The tumors often disappear spontaneously because the animal slowly develops immunity to them.

  • The four parathyroid glands (two on each side) are closely associated with the thyroid gland, located just below the larynx or “voice box” in the neck.

  • The pituitary gland is an endocrine gland located at the base of the brain. Endocrine glands produce specialized chemicals called hormones, which regulate and integrate many activities to maintain internal stability of the body.

  • Plasma cells (plasmacytes) are specialized cells that function as part of the body’s immune system. They are formed from ‘B’- type lymphocytes.

  • The definition of a pneumothorax is an accumulation of air outside the lungs, but inside the chest wall. The air outside the lung prevents the lungs from inflating normally, and can lead to lung collapse. There are several variations of pneumothorax.

  • The prostate gland stores sperm from the testicles and produces fluid that contains essential nutrients for the sperm. Cancers of the prostate are rare but usually involve the cells that make the fluid.