Schwannoma of the external auditory canal

Schwannomas are uncommon tumors of the external auditory canal. In the English literature, very few cases of schwannomas originating in the external auditory canal were reported. In this report, we described a 44-year-old patient who presented with external auditory canal mass which was managed by local excision. The clinical and histologic features, the differential diagnosis, and the treatment of external auditory canal schwannoma is discussed.     

Reticulohistiocytoma of the external auditory canal

We report the first documented case of reticulohistiocytoma of the external auditory canal in a 15-year-old male. Reticulohistiocytoma is a rare diagnosis in children. Reticulohistiocytoma, a benign lesion, belongs to a family of histiocytosis disorders which range from benign to malignant. Although histiocytic disorders are uncommon, they should be included in differential diagnosis of pediatric aural polyps.     

Cancer of the external auditory canal

OBJECTIVE: To evaluate the outcome of surgery for cancer of the external auditory canal and relate this to the Pittsburgh staging system used both on squamous cell carcinoma and non-squamous cell carcinoma. DESIGN: Retrospective case series of all patients who had surgery between 1979 and 2000. Median follow-up was 47 months (range, 2-148 months). Data on age, sex, symptoms, TNM status, histopathological diagnosis, surgery, adjunctive therapy, sequelae, recurrence, and status at follow-up were obtained. SETTING: An ear, nose, and throat department in an ambulatory and hospitalized care center. PATIENTS: Ten women and 10 men with previously untreated primary cancer. Median age at diagnosis was 67 years (range, 31-87 years). Survival data included 18 patients with at least 2 years of follow-up or recurrence. INTERVENTION: Local canal resection or partial temporal bone resection. MAIN OUTCOME MEASURE: Recurrence rate. RESULTS: Half of the patients had squamous cell carcinoma. Thirteen of the patients had stage I tumor (65%), 2 had stage II (10%), 2 had stage III (10%), and 3 had stage IV tumor (15%). Twelve patients were cured. All patients with stage I or II cancers were cured except 1 with adenoid cystic carcinoma. No patients with stage III or IV cancer were cured. All recurrences developed in patients with incompletely resected tumors. CONCLUSIONS: The outcome was related to the stage of disease, suggesting that the Pittsburgh staging system is useful also in patients with non-squamous cell carcinoma. Patients with early cancer benefited from a less aggressive surgical approach, while survival was poor in patients with advanced cancer with incompletely resected tumors despite adjuvant radiotherapy.     

Fibroxanthoma of the external auditory canal

Atypical fibroxanthoma is an scarce skin tumor which usually develops in exposed areas of elderly persons. It is very uncommon in the external auditory canal, where it might be wrongly diagnosed as a sebaceous cyst or carcinoma. We report a case of atypical fibroxanthoma of the external auditory canal and review the current procedure for the differential diagnosis of these lesions.     

广基型外耳道乳头状瘤切除合并耳道成形

目的 提高广基型外耳道乳头状瘤手术疗效,防止复发及外耳道狭窄。方法 对21例广基型外耳道乳头状瘤采用显微镜下切除合并外耳道成形加带蒂或游离皮瓣移植治疗。结果 随访2年,21耳均无复发及外耳道狭窄。结论 显微镜下切除合并外耳道成邢加带蒂或游离皮瓣移植治疗广基型外耳道乳头状瘤可减少复发,避免中耳损伤,防止外耳道狭窄。     

Surgery of the external auditory canal in familial bilateral auditory canal atresia

BACKGROUND: Inherited isolated bilateral atresia of the external auditory canal is rare. Ear canal surgery procedure is difficult. METHODS: Basing on a case report of a family with inherited isolated bilateral atresia of the external auditory canal in 4 cases the way of preoperative diagnostics including human genetics and our surgical concept is described. RESULTS: Resulting clinical findings showed complete epithelialization of the ear canal and ear drum with slight conductive hearing loss. CONCLUSIONS: Canaloplasty in atresia can be easily and successfully accomplished by our modified technique.