with injury to the above structures [6]. The main focus of this study is to present the different clinical manifestations and diagnostic strategies of CSRS, in order to prevent delayed diagnosis and providing early management. It was conducted at King Fahad Specialist Hospital (KFSHD), Eastern region, Saudi Arabia.
MethodThis is a retrospective clinical study which was conducted in the otolaryngology department of King Fahad specialist Hospital, Dammam, Saudi Arabia, from January 2008 to November 2019. The clinical features, radiological images, operative findings, and clinical outcomes were retrospectively reviewed and analysed with full description of some selected cases are presented in this report. Patients included were: 1-isolated sphenoid chronic rhinosinusitis which were confirmed by computed tomography (CT) and/or magnetic resonance imaging (MRI); 2-intraoperative