"Anatomy "
"Onodi cell misidentified as the sphenoid sinus"
Expected headings
"Radiographic features"
"CT"
"Anatomy "
"Pathology"
"Technique"
"Major complications"
"Minor complications"
"Failed FESS"
"orbital decompression (e.g. thyroid-associated orbitopathy)"
"Contraindications are on a case-by-case basis as endoscopy cannot satisfactorily correct certain conditions; in such cases, an open technique is used."
"topical anaesthetics are injected; general anaesthesia is best used for the paediatric or anxious patient and for long procedures"
"ethmoidectomy; it is important to stay low, so as not to breach the skull base"
"frontal sinusotomy; frontal work reserved for last, lest bleeding from frontal intervention obscures the sinonasal anatomy"
"nasolacrimal duct obstruction; treated with dacryocystorhinostomy"
"anosmia or hyposmia; virtually all cases resolve"