SINONASAL TUMOURS WITH ORBITAL INVOLVEMENT: THE COMBINED APPROACH

Advanced sinonasal tumours often present with orbital involvement. Surgical treatment and radical excision are also possible, preserving the eye. Oncological safety and functional outcome of the preserved eye are the counterpart in orbital preservation surgery. Irrespective of the orbital invasion, tumour histology influences the prognosis. Surgical approaches to the orbit in sinonasal tumour are divided in anterior and posterolateral procedures. The combined transfacial and trancranial surgical approaches have been well described in the literature for craniofacial resection, when the anterior or medium skull base are involved. Multidisciplinary collaboration with microscopic and/or endoscopic control have improved surgical technique to extirpate tumours extended to dura, spehenopalatine area and pterygomaxilmary fissure, infratemporal fossa, roof of nasopharynx and apex of orbit. We describe the multiphase combined surgical approach with maxillofacial, otolaryngology and neurosurgical collaboration in sinonasal tumour treatment.