管壁下乳突切除术治疗复发性胆脂瘤

                               
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15 yo boy was diagnosed with large recurrent cholesteatoma on the left. Patient had had bilateral cholesteatoma and bilateral canal-wall up tympanomastoidectomies 5 years earlier. No recurrence was found on the right. In case of cholesteatoma, thorough follow up after canal-wall up mastoidectomy is always mandatoy in order to detect early recurrence. In this case, diagnosis of recurrence was late and required canal-wall down mastoidectomy as a choice for treatment.