[Pansinusitis secondary to inflammatory myofibroblastic tumor].

Inflammatory myofibroblastic tumors are aetiologically enigmatic and biologically unpredictable lesions. The lungs are the organs of apparent predilection. These tumors have also been documented in a number of extrapulmonary sites including head and neck. Paranasal location is rare. We report a case of a maxillary location in a 10 years and 10 months old girl initiated as an acute pansinusitis.