[High-resolution computer tomography of osseous changes following radical operation of the maxillary sinuses]

The opacification of the maxillary sinuses following Caldwell-Luc procedure seen with plain films depends to a great deal on bony changes. Based on 60 cases the advantages of the computed tomography especially in high-resolution mode are described in comparison with plain films. CT-scans clearly demonstrate the bony changes following Caldwell-Luc procedure, they show the size of the air-filled antrum and reveal inflammation of fibrous soft tissue within the sinus maxillares. Computed tomography facilitates differential diagnosis with regard to other pathological changes of the antrum. If radiological examination following Caldwell-Luc procedure is indicated, CT represents the method of choice.