Nose and paranasal sinus tumours: United Kingdom National Multidisciplinary Guidelines.

This is the official guideline endorsed by the specialty associations involved in the care of head and neck cancer patients in the UK. With only limited high-level evidence for management of nasal and paranasal sinus cancers owing to low incidence and diverse histology, this paper provides recommendations on the work up and management based on the existing evidence base. Recommendations • Sinonasal tumours are best treated de novo and unusual polyps should be imaged and biopsied prior to definitive surgery. (G) • Treatment of sinonasal malignancy should be carefully planned and discussed at a specialist skull base multidisciplinary team meeting with all relevant expertise. (G) • Complete surgical resection is the mainstay of treatment for inverted papilloma and juvenile angiofibroma. (R) • Essential equipment is necessary and must be available prior to commencing endonasal resection of skull base malignancy. (G) • Endoscopic skull base surgery may be facilitated by two surgeons working simultaneously, utilising both sides of the nose. (G) • To ensure the optimum oncological results, the primary tumour must be completely removed and margins checked by frozen section if necessary. (G) • The most common management approach is surgery followed by post-operative radiotherapy, ideally within six weeks. (R) • Radiation is given first if a response to radiation may lead to organ preservation. (G) • Radiotherapy should be delivered within an accredited department using megavoltage photons from a linear accelerator (typical energies 4-6 MV) as an unbroken course. (R).