Sphenochoanal polyp is a rare entity originating from sphenoid sinus. It ma
y be confused with antrochoanal polyp on anterior rhinoscopy because of its
similar appearance. Computerized tomography and nasal endoscopy have contr
ibuted to an increase of accuracy in the diagnosis of these masses. Simple
polypectomy that leaves some part of the polyp inside the sphenoid sinus ca
rries a high risk of recurrence. Destructive external approaches to gain ac
cess to the sphenoid sinus are also not advisable in children for a benign
disease. We present two crises of sphenochoanal polyps in two children that
were operated by endonasal endoscopic approach. They were free of symptoms
after surgery. No complications and recurrences were observed at 28 and 18
months of follow-up periods respectively. (C) 2001 Elsevier Science Irelan
d Ltd. All rights reserved.