Biopsy – Histological examination of tissue biopsies frequently leads to a definitive diagnosis of disease.  Tissue biopsies are typically obtained at the time of surgical removal of soft tissue masses from the body.  Samples are placed in a transport solution (10% formalin) for transport to the outside reference laboratory where microscopic slides are prepared and are read by a board-certified veterinary pathologist.  Results are faxed to the clinic, usually within a day or two.  The image below left is a benign papilloma (wart) and the image below right reveals the black pigment characteristic of a melanoma.


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