[Paranasal sinuses and facial imaging: exploratory strategies].

Advances in radiological and endoscopic imaging allow more accurate location and spread of nasosinusal diseases. These developments have led to a better understanding of sinusal anatomy and to widespread of surgical techniques as endoscopic sinus surgery. CT becomes the primary imaging modality for assessment of chronic rhinosinusitis and complex traumatic injury. Associated to CT, MRI is used to distinguish between inflammatory and neoplastic pathology and to assess lesions involving the skull base or intracranial structures. However, optimization of technical parameters according to the pathology is necessary.