Solitary fibrous tumours are rare neoplasms, which occur most frequently during adulthood at the level of the pleura. Recently, these tumours have been demonstrated in extraserosal sites such as the nasal cavity. A case of a solitary fibrous tumour arising at the level of the ethmoid and presenting in a 54-year-old woman, is reported. The tumour was removed using an endonasal endoscopic approach that permitted the monobloc excision of the lesion. The patient is without evidence of disease 18 months after surgery.