Skin cancer in dogs not only affects the skin cells, but the malignancy arrests the hair follicles, glands and also the supportive tissues. The basic reason for its occurrence is presumed to be excessive exposure to the sun. Dogs are also reported to be at a higher risk of contracting cancer in comparison to cats. |
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Skin cancer can be identified with symptoms such as formation of lumps or sores on the skin, alteration in the coloration of the skin, delayed healing of wounds, coughing, tiredness, vomiting, decrease in appetite, diarrhea and consistent itching in some parts of the body.
Tumors developing in the body could be either benign or malignant. Benign tumors are non-cancerous in nature and are usually confined within the site of origin. Unless such a tumor affects the movement of the dog, surgeries comprising their removal are not recommended. In contrast to these tumors, malignant forms are much more dangerous and have the ability to metastasize to different locations in the body.
Squamous Cell Carcinoma is one of the most commonly observed forms of cancer in dogs that possess scanty hair growth. Although the malignancy originates in the skin but it gradually spreads to the other parts of the body as well. Another variant of cancer known as Hemangiosarcoma, is commonly found in the liver or spleen but incidence of dermal hemangiosarcoma and subcutaneous hemangiosarcoma is also reported. While dermal hemangiosarcoma occurs on the skin, the latter is found beneath the skin. Fibrosarcoma first arrests the fibrous connective tissues of the spine, skull, ribs and the pelvic region, and thereafter gradually expands towards the other tissues. The most severe form of skin cancers in dogs is termed as Mast Cell Tumors. The malignancy extends very rapidly in this case leading to severe immobility and even death.
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