A Preauricular Swelling Presented as Fibro collagenous Nodule – A Rare Case Report

Abstract

Preauricular sinuses and congenital anomalies resulting from imperfect fusion or incomplete development of auricular hillocks are often asymptomatic but can lead to complications such as infection, necessitating surgical intervention. We report a rare case of a 33-year-old female presenting with swelling in the   preauricular region persisting for a decade, accompanied by pain and discomfort. Clinical examination revealed palpable, tender swelling with no visual manifestation, prompting low-dose CT imaging that indicated sinusitis-related findings in the maxillary sinus and incidental calcification in the left temporal scalp. Histopathological analysis confirmed the presence of a calcified collagenous nodule following excision and biopsy under local anaesthesia. This case highlights the challenges in diagnosing and managing preauricular sinus anomalies and emphasises the importance of timely intervention in symptomatic cases. Further research is required to elucidate the pathogenesis, associated syndromes, and optimal treatment strategies for preauricular sinus anomalies.