How can I distinguish tumor from healthy tissue?
It depends on the type of tumor and how far along it has progressed. More severe, solid tumors tend to appear hyperechoic (brighter) compared to surrounding tissue. Fluid-filled tumors will appear hypoechoic (darker) compared to surrounding tissue.
We recommend having a good understanding of what healthy tissue looks like with ultrasound (by imaging control animals), before imaging diseased, tumor-ridden animals. This will assist in recognizing changes on the appearance of the tissue as lesions develop.