Endonasal endoscopy and computerized tomography in diagnosis of the middle nasal meatus pathology

Diagnostic nasal endoscopy enables clear visualization of all structures of the middle nasal meatus and of the ostiomeatal complex. It is a primary means for diagnosis of all anatomic variations and other pathogenic factors of the lateral nasal wall, which cannot be diagnosed by using anterior/posterior rhinoscopy. Furthermore, the effects of therapy can be endoscopically controlled and, if necessary, a surgical procedure may be performed. Computed tomography has become the imaging study of choice in the diagnosis and management of sinonasal diseases. It provides detailed information and an unparalleled view of the sinuses, especially the bony anatomy.