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Section: Overview
Mast cell tumors, also called mastocytomas, arise most commonly in the skin. They develop from a normal component of body tissues called the mast cell that play a role in the process of tissue repair by releasing inflammatory mediators. Mast cell tumors rarely affect the skin of cats, although it is the most common site for dogs. Malignant mast cell tumors in cats usually involve the intestine or spleen, and the spleen can become dramatically enlarged. Malignant mast cell tumors can spread to the lymph nodes, spleen, liver and bone marrow. The cause of mast cell tumors is unknown. Mast cell tumors have been transmitted experimentally using tumor extracts suggesting possible viral origin, but this hypothesis remains unproven.Among cats, the Siamese breed may be more commonly affected. Males and females are affected equally.Mast cell tumors in the skin of cats usually are benign and can be managed effectively by simple surgical excision.
Most skin cancers appear as a lump in or underneath the skin or as a sore that does not heal. Animals with skin cancer may experience discomfort or itchiness, which may cause them to chew or scratch at...
There are many different types of skin lesions that can occur in the skin of cats, and each lesion or combination of lesions can be caused by multiple diseases and conditions.
Very often the word “lump” brings the word “cancer” to mind, although there are many other causes of lumps, such as malignant or benign tumors, abscesses, cysts, hematomas (blood-filled mass) or hives....
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