Figure 8.

Photomicrographs of two mouse mammary tumors 24 hours post 915 microwave treatment. These photomicrographs show similar effects consisting largely of generalized central tumor necrosis. The superfical tumor is spared, likely due to applicator cooling. The high magnification (10×) photomicrographs of muscle tissue deep to the tumor demonstrate varying degress of muscle necrosis, hemorrhage and inflammation. The majority of the changes are seen in Zones 1 and 2. See Figure 5 for information on tissue damage quantification techniques.