외이도 진주종의 병기별 진단체계와 치료 접근법에 대한 고찰

Abstract

External auditory canal cholesteatoma (EACC) is a rare keratinizing epithelial disorder characterized by progressive bony erosion, with potential extension into the middle ear or intracranial cavity in advanced stages. The early clinical presentation is often subtle and may resemble external otitis, delaying accurate diagnosis. This review summarizes the current understanding of EACC, including pathogenesis, hallmark clinical signs, imaging-based diagnostic strategies, classification systems, and tailored treatment approaches. Recent staging systems offer practical guidance for treatment selection, balancing disease extent with surgical feasibility and patient factors. While conservative care may suffice for early-stage disease, surgical intervention is often required in advanced cases. Long-term prognosis is strongly associated with timely diagnosis, thorough lesion removal, and structured postoperative follow-up.