Endonasal endoscopic surgery for rhinogen intraorbital abscess: a report of six cases.

Intraorbital abscess is a serious complication of sinusitis with the danger of permanent loss of vision and even the danger of life-threatening progress. The recommended surgical procedure in the literature for drainage of an intraorbital abscess is the external approach. We report on successful functional endonasal endoscopic surgery in a series of six sequential cases with intraorbital abscesses following sinusitis. The main advantages of this approach are the simultaneous treatment of causative disorders with surgery following the pathogenic route of the abscess formation and lack of trauma to further structures. The endoscope with 25- or 70-degree angled axis of vision enables the surgeon to explore and drain the abscess cavity, which often is located behind the bulbus, with minimal trauma. For the trained surgeon the field of vision is favorable as compared with the external approach when the abscess is located right in the axis of vision and one has to cut through healthy tissue and the intact skin, which, especially in children, can lead to long-lasting visible scars.