Seromucinous Hamartoma Versus Low-Grade Sinonasal Adenocarcinoma: A Worrying Mass of the Ethmoid Sinus

Year 2025, Volume: 8 Issue: 1, 36 - 40, 20.04.2025

Jean-gualbert Nève De Mévergnies Marie-cécile Nollevaux Philippe Eloy

Abstract

An elderly woman presented with vertigo and loss of memory. Computed tomography, positron emission tomog- raphy–computed tomography scan, and magnetic resonance imaging studies demonstrated a right ethmoid mass with evidence of bony erosion. The patient had no nasal symptoms. Endoscopy showed a polypoid mass in the right olfactive cleft. Operative biopsy wavered between benign seromucinous hamartoma and low-grade adeno- carcinoma. The patient underwent a complete excision of the mass. Final histology de!nitively proved the presence of a seromucinous hamartoma. No adverse events were noted. No adjuvant treatment was delivered. Follow-up was reassuring at 1 year.

Keywords

Adenocarcinoma , endoscopic endonasal , hamartoma , sinonasal malignancies , sinus surgery , unilateral sinusitis

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