Presentation of two case reports about our experiences with diagnostics of paranasal tumours in patients with diplopia or ocular motility disorders which were the first symptoms of these tumours. Furthermore, the following diagnostic and therapeutic procedure which has been conducted in cooperation with other hospital departments is presented. The first case report is an example of primary paranasal tumour, the second case report represents secondary infiltration of maxillary sinus and orbital invasion.
Methods: A case reports.