[The value of MR tomography in tumorous diseases of the inner nose and paranasal sinuses].

In the examination of the inner nose and the paranasal sinuses, magnetic resonance imaging impresses by its excellent representation of anatomical structures, due above all to the multiplanar orientation of slices, the good possibility to differentiate soft tissue structures, and the accurate visualization of lymph nodes and vessels without contrast medium. Osseous lesions can be better assessed by computed tomography, however, magnetic resonance imaging can indirectly demonstrate bone destructions, too.