FIG 4. Illustration of the EACC shows erosion of bone, which leaves behind intramural bone fragments (solid arrow). Note the mucosal disruption (open arrow), seen on otologic examination. Used with permission (25).
FIG 4. Illustration of the EACC shows erosion of bone, which leaves behind intramural bone fragments (solid arrow). Note the mucosal disruption (open arrow), seen on otologic examination. Used with permission (25).