FIG 1. Representative CT scans (pretreatment [A]; post-treatment [B]) show the response to chemoradiation of a pathologically abnormal node (open arrow) and a normal node (closed arrow). The pathologically abnormal node shows a volume reduction of 84%, and the normal node shows a volume reduction of 98%. The extracapsular spread seen in the pathologically abnormal node in the pretreatment scan is not seen in the post-treatment scan