An Unusual Case of Nasopharyngial Adenoid Cystic Carcinoma with In- tracranial and Orbital Extension: A Challenge for Innovative Conformal Radiotherapy Techniques
Adenoid cystic carcinoma of nasopharynx is rare. When tumor is resectable, surgery alone or followed by radiotherapy is frequently used for treatment. In the other hand, when tumor is not resectable, only radiotherapy can allow for a protracted local control obtaining. However, achievement of an optimal dose distribution is not always easy due to the location and the extent of the tumor.