The transethmoidal-pterygoidal-sphenoidal approach provides a wide, safe, and direct route to the lateral recess of the sphenoid sinus. Multilayered reconstruction of the skull base defects must be considered the first option for this kind of lesion.
In correctly selected patients with sinonasal tumors involving the ASB, ETC offers a less invasive alternative than resection by an open approach with an acceptable morbidity.
The endoscopic endonasal orbital transposition seems to facilitate the endoscopic management of selected far-lateral frontal sinus lesions. However, it is a demanding procedure that requires experience and skill to avoid intraoperative skull base and orbital complications.
Sinonasal haemangiopericytomas are rare tumours that are usually benign. The mainstay of treatment is wide surgical excision with free resection margins. Nowadays, the great majority of patients can be treated using a purely endoscopic, endonasal approach.
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