Articles

Tumors

  • Dogs are highly social animals that make wonderful pets; however, with the lifestyle and schedule of the majority of families, dogs must learn to spend a portion of the day alone at home while their human family is away. Training the dog to spend time in a crate will prevent undesirable or unsafe activities.

  • The histiocyte group of cells are part of the body’s immune surveillance system. They take up and process foreign antigens, such as pollens and viral, bacterial and fungal microorganisms.

  • Systemic lymphoma is a very common cancer in dogs, but the cutaneous form is actually quite rare. Current statistics suggest that cutaneous lymphoma accounts for only about 5% of canine lymphoma cases.

  • The histiocyte group of cells are part of the body's immune surveillance system. Cutaneous (reactive) histiocytosis is an uncommon condition of dogs. Cutaneous, reactive histiocytosis is an immune dysfunction, mainly of young dogs and probably due to persistent antigenic stimulation by a variety of antigens (foreign proteins).

  • Cysts are hollow spaces within tissues that contain either a liquid or a solidified material; the contents may be a natural bodily secretion or an abnormal breakdown product.

  • Cytology is the microscopic examination of cell samples. These samples may sometimes be collected from the surface of the lesion under investigation, but more often, the sample is obtained by use of a special needle.

  • Tumors of the intestinal epithelial lining include non-cancerous polyps, benign adenomas and malignant epithelial tumors (adenocarcinomas). The polyps and adenomas may be multiple and cause local obstruction.

  • Muscle (called “smooth muscle”) and fibrous connective tissues form the framework (stroma) that holds other tissues together within the organs of the body. They enable these organs to contract and stretch as part of their function, for example in digestion of food.

  • Most ear tumors are polyp-like growths that attach to the underlying tissue by a narrow base or a stalk. Some are nodular overgrowths that develop secondary to inflammation but others are benign or malignant cancers of the glands found in this area.

  • These are tumors arising from structures within the eye. The most common intraocular tumors originate from the melanin producing cells (discussed in a separate handout).