Language: English French. Two rare cases of malignant rectal melanoma in dogs are described. Tumors were locally invasive and composed of spindle cells arranged in interweaving bundles, sheets, and nests within preexisting fibrovascular stroma. Mitotic count was high.
Are you sure you wish to cancel your assignment to report on this case — all inputted data will be lost! This site is optimised for modern web browsers, and does not fully support your browser version, we suggest the use of one of the following browsers: Chrome , Firefox , Microsoft Edge , some sections of the website may not work correctly such as web forms. Melanoma is a relatively common tumour in dogs that develops from pigment-producing cells melanocytes. It is the pigment in these cells that gives the skin its colouration and hence these tumours are often darkly coloured. This tumour usually develops in the mouth especially on the gums, lips and palate , on the foot especially the junction of the toe and nail and the pad , on haired skin anywhere on the body and occasionally within the eye. This tumour is generally malignant, in that it will grow to invade surrounding tissue, and, more importantly, may spread elsewhere within the body, particularly to the nearby lymph glands lymph nodes and the lungs.
Back to Blog. Melanoma is a malignancy of melanocytes, the cells responsible for producing pigment in the body. While melanomas can occur in many locations on the body the biological behavior of this tumor can vary tremendously with location.
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