Progressive Left Nasal Obstruction and Intermittent Epistaxis

Abstract

A man in his 20s presented to a tertiary rhinology center in southwestern Florida with a 3-month history of progressive left nasal obstruction and intermittent epistaxis. Two years previously, the man had similar presenting symptoms at an outside facility and was treated with surgery to excise a sinonasal mass. He did not have any visual changes, pain, or purulent nasal discharge. He reported no olfactory impairment. He was originally from Bangladesh but had moved to the United States 6 years earlier. In-office flexible fiberoptic nasal endoscopy revealed a soft, friable polypoid mass with a strawberry-like appearance originating from the lateral nasal wall and filling the left nasal cavity (Figure, A). Computed tomography of the sinuses revealed a left nasal cavity mass without bony destruction or paranasal sinus involvement (Figure, B). The patient underwent endoscopic sinus surgery on the left side, where complete surgical excision of the mass was performed along with electrocautery of attachment sites. The mass was found to have multiple attachments surrounding the maxillary sinus ostium and mucosa overlying the lacrimal bone. Pathologic evaluation revealed squamoid-type mucosa with large, thick-walled sporangia with numerous endospores. Also present was an exuberant mixed inflammatory infiltrate consisting of polymorphonuclear leukocytes, plasma cells, and lymphocytes (Figure, B and C). What is your diagnosis? A B