Purpose: To describe a case of conjunctival hyperaemia and proptosis of the ri ght eye. Methods: Three-dimensional computed tomography (CT) was performed to r eveal the size and position of a lesion of osseous density...Purpose: To describe a case of conjunctival hyperaemia and proptosis of the ri ght eye. Methods: Three-dimensional computed tomography (CT) was performed to r eveal the size and position of a lesion of osseous density extending into the ri ght orbit. The lesion was then excised using a right paranasal transcutaneous ap proach. Results: The pathology report suggested ethmoidal osteoma. The postopera tive course was uncomplicated and the lesion did not recur during a 5-year foll ow-up period. Repeated postoperative ophthalmic examinations revealed preservat ion of visual acuity and visual fields postoperatively. Discussion: Diagnosis is based on imaging studies, especially CT and three-dimen- sional CT scans. A three-dimensionalCT scan is critical in understanding the actual dimensions of the tumour and its relations with other structures. Surgica l removal is indicated in cases with orbital matrix compression and displacement . A transcutaneous paranasal approach allows for increased exposure of affected structures.展开更多
文摘Purpose: To describe a case of conjunctival hyperaemia and proptosis of the ri ght eye. Methods: Three-dimensional computed tomography (CT) was performed to r eveal the size and position of a lesion of osseous density extending into the ri ght orbit. The lesion was then excised using a right paranasal transcutaneous ap proach. Results: The pathology report suggested ethmoidal osteoma. The postopera tive course was uncomplicated and the lesion did not recur during a 5-year foll ow-up period. Repeated postoperative ophthalmic examinations revealed preservat ion of visual acuity and visual fields postoperatively. Discussion: Diagnosis is based on imaging studies, especially CT and three-dimen- sional CT scans. A three-dimensionalCT scan is critical in understanding the actual dimensions of the tumour and its relations with other structures. Surgica l removal is indicated in cases with orbital matrix compression and displacement . A transcutaneous paranasal approach allows for increased exposure of affected structures.
