外、中耳术后残腔异物1例

1 临床资料 患者,男性,25岁,因助听器耳样及耳障嵌顿于右外耳道半日,于2010年3月19日就诊.患者右耳选配助听器,取耳样时将其折断,剩余耳样及耳障嵌顿于耳道内术后残腔,因外耳道口较狭窄不能取出就诊时右耳疼痛,堵塞感,无流水.     

外耳道和中耳癌放疗后放射性脑病2例并文献复习

在头颈部肿瘤中,放射性脑病一般发生于鼻咽癌放疗之后,而在外耳道和中耳癌放疗后发生的脑损伤并不常见。本文报告1例外耳道癌和1例中耳癌的患者术后放疗后发生了放射性脑病的病例,同时进行相关文献复习并讨论外耳道和中耳癌放疗后放射性脑病的发生机理、临床特征及治疗方法。虽然此病在外耳道癌和中耳癌中比较罕见,但在这类病人中还是应该提高警惕,注意其出现的可疑症状,尽早发现尽早处理。     

外耳道胆脂瘤修订手术的临床病例分析

目的 分析外耳道胆脂瘤(EACC)修订手术病例的临床特点、处理及预后.方法 回顾性分析2011-2019年EACC术后因外耳道狭窄、闭锁伴外耳道胆脂瘤复发10例(8名患者)于我院行修订手术的临床特征、修订手术要点.结果 10例修订手术中,5例为外耳道狭窄,5例为外耳道闭锁.3例术中发现外耳道骨质增生.修订手术与前次手术...     

Carcinoid Tumors in the Middle Ear:a Case Report and Literature Review

Introduction Middle ear carcinoid tumor (MECT) is a rare formof neoplasm. Since the first case of MECT was reportedby Murphy et al. in 1980 (Murphy et al, 1980), therehave been only forty-six cases of MECT reported in theliterature (Ramsey et al, 2005), with only three cases re-ported in China (Feng et al, 2001; Zhang et al, 2005;Chan et al, 2005). We present here a case of primaryMECT, which was initially diagnosed as inflammatoryaural polyp. The literature is reviewed. Clinical,his…     

外耳道骨瘤(附8例报告)

文中记载了1987～1995年间遇到的8例外耳道骨瘤患者,均无明显发病诱因.症状持续8个月至10年不等.所有病例均伴有传导性听力损失和/或外耳道炎.外耳道骨瘤为独立、单侧性骨性肿瘤,基底位于鼓鳞裂或鼓乳裂;病理上,为成熟骨小梁中包含纤维血管组织所组成,8例均在局麻下手术切除.文中就其诊断和术中注意点提出讨论.     

pediatric middle ear congenital cholesteatoma: a case report

Congenital cholesteatoma (CC)is a rarely seen benign tumor of the temporal bone. There are five general sites of extradural occurrence: the midd leear, external auditory meatus, mastoid, squamous portion and the petrous apex of the temporal bone. CC grows slowly and presents no symptoms at the early stage. Delayed and mis-diagnosis are common with this condition 1.     

Benign Osteonecrosis of the External Ear Canal

Benign osteonecrosis (BON) of the external ear canal (EEC), also termed as focal or circumscribed necrotizing lesion, is an infrequent phenomenon with distinctive features and of an obscure origin. Five patients with BON of the EEC presented with aggressiveness and extension of varying degree including involvement of the middle ear. It seems that the disease might have a self limited course (two patients) though, at times, extensive measures including hyperbarric oxygen therapy (one patient) should be applied.     

Microbiology of Normal External Auditory Canal

Objectives To isolate and characterize bacteria and fungi from the healthy ear and to obtain susceptibility profiles on each bacterial isolate. Study Design Prospective. Methods Specimens were collected from the external canals and cerumen of healthy subjects. Species‐level identification was obtained by combining phenotypic and genotypic data. End‐point minimal inhibitory concentration testing was performed using National Committee for Clinical Laboratory Standards recommended methods. Results One hundred sixty‐four subjects were cultured. Seventeen canal and 16 cerumen specimens showed no growth. One hundred forty‐eight cerumen specimens yielded 314 organisms, including 23 fungi. One hundred forty‐seven canal specimens yielded 310 organisms, including 7 fungi. Of 291 bacteria isolated from cerumen, 99% were Gram‐positive. Of 302 bacteria isolated from the canal, 96% were Gram‐positive. Staphylococci were 63% of both the cerumen bacteria and the canal bacteria. Coryneforms represented 22% of the bacteria in cerumen and 19% in the canal. Turicella otitidis was the primary coryneform isolated from both the canal and the cerumen. Streptococci‐like bacteria were 10% from the cerumen, 7% from the canal. In both cerumen and canal, Alloiococcus otitis was more than 95% of the streptococci‐like bacteria. Fifteen gram‐negative organisms were isolated from the canal and cerumen, including four Pseudomonas aeruginosa strains. The percentages of Staphylococcus epidermidis isolates that had high‐level resistance (≥8 μg/mL) were as follows: to neomycin, 28% from cerumen and 11% from the canal; to oxacillin, 28% from cerumen and 25% from the canal; and to ofloxacin, 15% from cerumen and 19% from the canal. Conclusions Turcella otitidis and A. otitidis were present with a much higher frequency than previously described, lending evidence that they be considered normal otic flora. Corynebacterium auris, previously reported only in children, was isolated from normal adults.     

Treatment of External Auditory Canal Exostoses

Exostoses of the external auditory canal can occur in patients living in coastal, southern California communities with a history of cold-water aquatic activities such as ocean surfing and swimming. Although most canal exostoses are asymptomatic, patients with canal obstruction greater than 80% can have recurrent episodes of external otitis and a related conductive hearing loss. In most cases, medical treatment resolves the symptomatic external otitis and related hearing loss. Patients recalcitrant to medical treatment are candidates for surgical removal of the exostoses. This report reviews the authors' surgical experience with 18 patients (27 ears) who have undergone surgical removal of exostoses. Their preferred surgical technique of transmeatal removal of exostoses with a specialized mallet and thin chisel under local anesthesia is described.     

Idiopathic Hypereosinophilic Syndrome Involving the Middle Ear: Clinical Case Report and Discussion

Multiple organ system involvement is seen in the idiopathic hypereosinophilic syndrome (HES). Cardiovascular, lung and upper airway, liver, spleen, skin and nervous systems are frequently involved. In this article, we describe two cases of HES involving the middle ear and lung. In both cases, the histological pictures showed an increase of eosinophils in the tissue of the tympanic cavity.     

Ceruminoma of the External Auditory Canal adenoid cystic variety

Adenoid cystic carcinoma is a rare variety of Ceruminoma, arising from the glandular elements of the External Auditory Canal. A case of Adenoid cystic carcinoma of the external auditory canal is reported, to recapitulate clinical features and management problems of the tumour at this site. The controversies in nomenclature, histopathology, and management are discussed.     

外耳道胆脂瘤临床特征及治疗

目的：探讨外耳道胆脂瘤的临床特点,为手术方式的选择提供参考。方法回顾性分析2006年8月～2014年12月住院手术治疗并经病理确诊的38例（39耳）外耳道胆脂瘤患者的临床资料,总结其症状、体征、术前CT表现、临床分期、手术方式及疗效。结果所有病例外耳道均可见灰白色物或肉芽样物阻塞,术前以听力下降为主要主诉（100％,39／39）,其次是耳闷涨感（79．49％,31／39）及耳痛（74．36％,29／39）。39耳外耳道胆脂瘤结合术前CT ,按 Holt分期：I期10耳,病变局限在外耳道,无骨质破坏;II期23耳,病变位于外耳道,伴骨质破坏,未累及中耳;III期6耳,病变破坏外耳道并累及中耳乳突和／或鼓室、鼓窦。I期行外耳道胆脂瘤切除术;II期行外耳道胆脂瘤切除术＋外耳道成形术和／或鼓室成形术;III期行外耳道胆脂瘤切除术＋鼓室成形术＋乳突切除术。术中见31耳鼓膜完整、内陷,8耳鼓膜松弛部穿孔,4耳听骨链砧镫关节破坏,1耳面神经垂直段裸露。所有病例均一次完成手术,听力恢复良好,无复发。结论外耳道胆脂瘤易误诊,根据临床分期选择合适手术方式可获得满意疗效。     

Finite-Element Modelling of the Acoustic Input Admittance of the Newborn Ear Canal and Middle Ear

Admittance measurement is a promising tool for evaluating the status of the middle ear in newborns. However, the newborn ear is anatomically very different from the adult one, and the acoustic input admittance is different than in adults. To aid in understanding the differences, a finite-element model of the newborn ear canal and middle ear was developed and its behaviour was studied for frequencies up to 2000 Hz. Material properties were taken from previous measurements and estimates. The simulation results were within the range of clinical admittance measurements made in newborns. Sensitivity analyses of the material properties show that in the canal model, the maximum admittance and the frequency at which that maximum admittance occurs are affected mainly by the stiffness parameter; in the middle-ear model, the damping is as important as the stiffness in influencing the maximum admittance magnitude but its effect on the corresponding frequency is negligible. Scaling up the geometries increases the admittance magnitude and shifts the resonances to lower frequencies. The results suggest that admittance measurements can provide more information about the condition of the middle ear when made at multiple frequencies around its resonance.