Fig. 123 (abstract O86).

a Example of gross pathology section of the SIJ showing discoloration of muscle and bone tissue consistent with thermal changes. b Low magnification H&E histology of a boxed section in (a). Muscle, adjacent bone tissue, and two nerves (black arrows), show changes consistent with thermal necrosis. 1 mm scalebar. (c) High magnification H&E histology image of the nerve showing hemorrhage (asterisk), and loss of axons associated with dilation of the myelin sheath (arrow). 100 um scalebar