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Dogs + Tumors

  • This tumor is a disordered and purposeless overgrowth of sweat gland cells. Most sweat glands are attached to the hair follicles (“paratrichial”, or beside the hair) but a few are not associated with follicles (atrichial).

  • This slow-growing tumor is a disordered overgrowth of cells of the epidermis, or outer layer of skin. It gets its name from its resemblance under the microscope to the basal cell layer of epithelium.

  • 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.

  • This is one of many similar tumors that arise by disordered growth of the hair follicles. Almost all of these tumors are benign and can be permanently cured by total surgical removal.

  • Lymphocytes are specialized cells that function as part of the body’s immune system, and are key cells in the body’s ability to fight and prevent infection. Lymphocytes are found in the blood and tissues throughout the body, and are in particular concentration in lymph nodes and other ‘lymphoid tissue’.

  • Melanocytes are cells that produce a pigment called melanin. They are found in many parts of the body where there is pigment, particularly skin, hair and eyes.

  • This tumor is a disordered and purposeless overgrowth of sebaceous gland cells. These glands are attached to the hair follicles where their function is to lubricate the hairs and skin.

  • The spleen is an abdominal organ located near the stomach. The spleen contains two types of tissue, red pulp and white pulp.

  • This is a malignant tumor of skin epidermal cells with varying degrees of differentiation (resemblance to normal, non-cancerous cells). Tumors of this type occur in people and all domestic species.

  • Tumors of the epithelial, glandular stomach lining include non-cancerous polyps and some types of chronic (hyperplastic) gastritis. Malignant epithelial tumors (gastric adenocarcinomas) cause progressive illness.