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Cancer & Tumors

  • Cysts are hollow spaces containing liquid or solidified secretion. A few cysts form within cancers but only non-cancerous cysts are considered here.

  • Muscle (called smooth muscle) and fibrous connective tissues form the framework (stroma) that holds other tissues together in the organs of the body. A number of different tumours can develop from the cells of these tissues.

  • Doxorubicin is a chemotherapeutic drug used to treat cancer in animals. These drugs can cause cancer in humans and should be handled with extreme caution.

  • These tumours are polyp-like growths with a narrow base or a stalk. Some are nodular overgrowths secondary to inflammation but others are benign or malignant cancers of the glands found in this area.

  • Tumours of the cortex of the adrenal glands may be overgrowths (hyperplasias) or benign (non-spreading) or malignant (spreading) cancers. Usually they are producing hormones that will have secondary clinical effects elsewhere in the body.

  • Tumours of the medulla of the adrenal glands may be hyperplasias (non-cancerous cell overgrowths) or be cancerous. Few are diagnosed until late in the disease because, unlike tumours of the adrenal cortex, medullary tumours do not produce clinical signs.

  • An epulis is a benign oral tumour that affects the gum. It arises from the periodontal ligament which lines the tooth cavity and surrounds the tooth.

  • These are tumours arising from structures within the eye. They tend to result in an increase in the internal pressure (glaucoma), which then leads to blindness.

  • Melanocytic tumours are formed by abnormal melanocytes. Melanocytoma is a benign (non-spreading) melanoma. Malignant (spreading) tumours are sometimes called melanoma or more specifically malignant melanoma or melanosarcoma.

  • Melanocytic tumours are formed by abnormal melanocytes. Melanocytoma is a benign (non-spreading) melanoma. Malignant (spreading) tumours are sometimes called 'melanoma' or more specifically malignant melanoma or melanosarcoma.