Abstract
This is the case report of a 33-year-old female who presented with ear discharge and pain. A soft tumor was discovered in the right external auditory canal and a biopsy was performed. Histology showed it to be squamous cell carcinoma. CT and magnetic resonance imaging demonstrated the features of tumors and intracranial invasion. Digital subtraction angiography demonstrated the occlusion of the sigmoid sinus. Carotid angiography demonstrated stenosis of the internal carotid artery (ICA). Six weeks after preoper-ative irradiation (40 Gy), subtotal resection of the temporal bone was carried out with removal of a portion of the dura mater, ICA and sigmoid sinus because of the tumor invasion. The dura mater was repaired and the ICA and sigmoid sinus were reconstructed with free saphenous and external jugular vein grafts. Postoperative irradication (25 Gy) was carried out 2 months after operation.