Case Study of a Rare Disease Sphenochoanal Polyp

Sphenochoanal polyp is a rare form of choanal polyp that originates from the sphenoid sinus and extends to the posterior choanae via sphenoethmoidal recess. Its occurrence is extremely rare. The polyp was found to attach to the junction of the lateral wall and floor of the sphenoid. They can be easily mistaken for antrochoanal polyps. Symptomatically, it is similar to an antrochoanal polyp. So, adequate preoperative evaluation with diagnostic nasal endoscopy and computed tomography or magnetic resonance imaging is necessary for correct diagnosis and planning of appropriate surgical procedures. Surgical resection is the treatment modality of choice. We here present a case of sphenochoanal polyp along with a review of the literature. A 27-year-old female presented in OPD with the complaint of right-side nasal obstruction for two years with mouth breathing and snoring for one year. Her anterior rhinoscopy examination was normal, but on diagnostic endoscopic examination, a pale whitish polyp was seen, which on decongestion was seen coming through the right sphenoethmoid recess and nasopharynx. The combination of history, nasal endoscopic examination and radiology leads us to diagnosis. Transnasal endoscopic resection is the treatment of choice.