Figure 1. One patient who had haemorraghe after reirradiation: (a) showed the treatment plan for a patient with recurrent foci invading the poststyloid space and so on, (b) showed the CT scan four months after IMRT of the necrosis of nasopharyngeal mucose, and a cavity continuing from the pharynx was formed after the tissue was expelled, (c) the patient had several attack of haemorraghe, DSA showed the right lingual artery pseudoaneurysm (arrow) five months after IMRT, (d) the patient again had massive haemorraghe six months after IMRT, DSA showed pseudoaneurysm in right internal carotid artery (arrow head), coil (arrow) placed at the lingual artery level for (c).