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A lipoma is a benign tumor made of fat tissue. [1] ... slow-growing, subcutaneous tumors that have a predilection for the ... but are most common in older dogs, ...
A histiocytoma in the dog is a benign tumor. It is an abnormal growth in the skin of histiocytes (histiocytosis), a cell that is part of the immune system. A similar disease in humans, Hashimoto-Pritzker disease, is also a Langerhans cell histiocytosis. [1] Dog breeds that may be more at risk for this tumor include Bulldogs, American Pit Bull ...
For example, benign tumors are mostly well differentiated and malignant tumors are often undifferentiated. However, undifferentiated benign tumors and differentiated malignant tumors can occur. [28] [29] Although benign tumors generally grow slowly, cases of fast-growing benign tumors have also been documented. [30]
Many types of skin tumors, both benign (noncancerous) and malignant (cancerous), exist in cats and dogs. Approximately 20–40% of primary skin tumors are malignant in dogs and 50–65% are malignant in cats. Not all forms of skin cancer in cats and dogs are caused by sun exposure, but it can happen occasionally. On dogs, the nose and pads of ...
A mastocytoma in dogs (or mast cell tumor in dogs) is a neoplasm originating from mast cells in the domestic dog, which occurs mainly in the skin and subcutis. Mastocytoma are not only extremely common in dogs, but also tend to be much more malignant in them than in other animal species.
Both benign and malignant tumors are seen in dogs. Common benign tumors include lipomas , non-viral papillomas , sebaceous gland adenoma, and perianal gland adenomas . Frequently seen cancers include lymphoma , melanoma , mast cell tumors (which are considered to be potentially malignant, even though they may have benign behavior), [ 20 ] and ...
Cellular angiofibroma, an angiofibroma that is a benign, usually small, slow-growing tumor arising in the groin, scrotal or vulva regions. [15] Angiofibroma of soft tissue, also termed angiofibroma NOS (NOS indicates Not Otherwise Specified), an angiofibroma that develops in the extremities, particularly around or in the large joints. [21]
A hamartoma is a mostly benign, [3] local malformation of cells that resembles a neoplasm of local tissue but is usually due to an overgrowth of multiple aberrant cells, with a basis in a systemic genetic condition, rather than a growth descended from a single mutated cell (monoclonality), as would typically define a benign neoplasm/tumor. [4]