Choanal polyp of sphenoidal origin

Sphenochoanal polyp is a rare entity which originates in the sphenoid sinus cavity and extends into the choana via the ostium. It presents in a simila r manner to the more common antrochoanal polyp. Radiological examination is necessary to differentiate between these two types. We present a case of s phenochoanal polyp and review the clinical, radiological and pathological f eatures. The role of endoscopic sinus surgery is emphasised.