external auditory canal
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Author(s):  
Hafsa Javed ◽  
Salman Hashmi ◽  
Asad Qayyum

Introduction Silver nitrate is commonly used within otolaryngology to treat granulation tissue in severe otitis externa. It appears radio-opaque on CT (computed tomography) imaging and therefore can mimic bony fragments and foreign bodies. This is particularly cumbersome when the phenomena correlates to the clinical complaint. Discussion We report two cases of 73-year-old and 75-year-old males who presented with chronic otalgia and discharge. Granulation tissue in the external auditory canal was identified and chemically cauterised with silver nitrate. Subsequent CT petrous bones demonstrated an unidentified foreign body in the canal with extensive soft tissue swelling giving an impression of a wick in situ and “minor bony erosion in the left external acoustic canal” respectively. An additional CT of a 57-year-old female who had been treated with silver nitrate for granulomatous tissue reported “multiple highly radiopaque foci in the external auditory canal, suggestive of foreign body”. Though relatively unknown, this phenomenon has been reported in literature. However, there are few reports of silver nitrate artefacts in CT images of the head no cases in the context of otitis externa. Our patients avoided further imaging or surgery following clarification with the radiologists and symptomatic improvement with long-term intravenous antibiotics. Conclusion Given the prevalence of CT imaging and cauterization in otolaryngology, we recommend contemporaneously documenting the use of silver nitrate and highlighting this on request forms to avoid alarming erroneous reports, unnecessary investigation and surgical procedures. We also recommend, where clinically acceptable, to use silver nitrate prior to imaging.


Author(s):  
Seamus Boyle ◽  
Rachel Keane ◽  
Marcel Jinih ◽  
Eoin McCarthy Deering ◽  
Naishadh Patil ◽  
...  

Author(s):  
Seiya Goto ◽  
Naoki Nishio ◽  
Kenichiro Iwami ◽  
Tadao Yoshida ◽  
Takashi Maruo ◽  
...  

Objective Surgical indications for advanced-stage squamous cell carcinoma (SCC) of the external auditory canal (EAC) are highly dependent on the skull base surgery team. The aim of this study was to evaluate the surgical outcomes in patients with SCC of the EAC and to clarify the surgical indication of far advanced cases using the T4-subclassification. Methods Patients with SCC of the EAC who underwent curative treatment from 2002-2021 were retrospectively reviewed at our hospital. Clinical and surgical results, including operative data, overall survival (OS), and disease-specific survival (DSS) were analyzed. To clarify the surgical indication for advanced stage, we proposed the T4-subclassification. Results In 46 patients, the tumors were in T1 stage in 8 patients, T2 in 10, T3 in 5, and T4 in 23. The 5-year DSS with T1, T2, T3, and T4 tumors were 100%, 85.7%, 100%, and 61.7%, respectively. No prognostic impacts for margin status were found between the 5-year OS and DSS (p = 0.23 and p = 0.13). Patients with far advanced stage (T4b) tumors were significantly associated with shorter DSS than those with early stage (T1/T2) and advanced stage (T3/T4a) tumors (p = 0.007 and p = 0.03). Conclusion The present study focused on patients with SCC of the EAC at a University hospital over a period of 20-years, especially with skull base involvement, and a T4-subclassification was proposed. Complete tumor resection in an en bloc fashion could help to achieve a good survival rate even in patients with locally advanced tumors.


2022 ◽  
pp. 019459982110710
Author(s):  
Arturo Eguia ◽  
Eric Jonasch ◽  
Paul Gidley

2021 ◽  
Vol Volume 9 (upjohns/volume9/Issue2) ◽  
pp. 51-53
Author(s):  
Anshu Sood

ABSTRACT An osteoma of the external auditory canal is an uncommon benign tumor with an incidence estimated to be 0.05% of total otologic surgery. In head and neck, they most often arise in the frontoethmoidal region and rarely temporal bone. Osteomas usually asymptomatic and discovered incidentally. A 35 male presented with swelling in right posterior superior part of EAC, without any history of ear picking , swimming or trauma. CT temporal bone revealed a solitary osteoma, with was excised surgically. Histopathological examination confirmed Osteoma.


2021 ◽  
pp. 014556132110640
Author(s):  
Takashi Anzai ◽  
Yusuke Takata ◽  
Satoshi Hara ◽  
Kenji Sonoda ◽  
Katsuhisa Ikeda ◽  
...  

Transcanal endoscopic ear surgery is a minimally invasive procedure that allows a clear visualization of the middle ear. Recently, indications for endoscopic surgery have been expanding. We performed combined underwater endoscopic and microscopic surgery for external auditory canal cholesteatoma, the computer tomography of which indicates the possibility of cholesteatoma not only in the canal wall but also in the mastoid. The 30° endoscope and underwater technique makes the surgical view clear, and we could remove the cholesteatoma without canalplasty. To the best of our knowledge, no case of external auditory canal cholesteatoma treated with underwater endoscopic and microscopic surgery has been previously reported. This case indicates that the procedure could be a good indication for external auditory canal cholesteatoma.


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