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  • Title: [Imaging features and surgical approach of external auditory canal cholesteatoma].
    Author: Lu W, Li S, Qin Z.
    Journal: Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi; 2007 Aug; 21(16):741-3. PubMed ID: 18035739.
    Abstract:
    OBJECTIVE: To define the clinical and imaging features of external auditory canal cholesteatoma (EACC) and determine the characteristics most important to its clinical management. METHOD: Seventeen cases (21 ears) of EACC were retrospectively reviewed. Clinical data were collected for the history, presentation, physical examination findings and CT scans. The surgical management approaches were reviewed. RESULT: Patients presented with otalgia (n = 21), otorrhea (n = 16), ear-canal stenosis (n = 11), facial nerve dysfunction (n = 4). CT scans showed a soft tissue mass with adjacent bone erosion (n =21). Middle ear and mastoid involvement (n = 9), facial canal erosion (n = 4), sigmoid sinus erosion (n = 1) and jugular bulb dehiscence (n = 1) were observed. EACC excision and canaloplasty through transcanal approaches were performed in 12 ears, while postauricular incision and canal wall down mastoidectomy were used in 9 ears. CONCLUSION: The possible causes of EACC and its possible extension may influence clinical management. Preoperative high-resolution temporal bone CT scans can be helpful in the diagnosis and management of EACC.
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