Rare case of an angiectatic sinonasal polyp feigning malignancy

Abstract

Angiectatic sinonasal polyps are uncommon. However, riveting nature of this polyp lies in its clinical presentation mimicking a neoplasm. It is radiologically very challenging to pick up this lesion in spite of its characteristic findings on imaging. Histopathology is paramount for asserting diagnosis. We report a rare case of a patient who presented to our outpatient department with chief complaints of nasal block, nasal discharge, and epiphora for 6 months. On examination, a mass was found filling the left nasal cavity. Computed tomography scan and diagnostic nasal endoscopy were suggestive of fungal sinusitis or sinonasal malignancy as a differential diagnosis. Biopsy was reported as benign sinonasal polyp. The patient underwent endoscopic resection of the mass, which on histopathology revealed the diagnosis of an angiectatic sinonasal polyp.

Keywords: Angiectatic; malignancy; sinonasal polyp.