Acquired stenosis of external auditory canal secondary to paraneoplastic manifestation of renal cancer

Falqueto, Loraine Entringer; Kaddoum, Marcos Lyra; Miranda, Marcelo Cabral Lamy de; Ramos, Henrique Faria

doi:10.1016/j.bjorl.2015.10.018

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…Falqueto et al. described a case of acquired EAC stenosis that manifested as a paraneoplastic syndrome secondary to renal cell carcinoma ( Falqueto et al., 2017 ). Histopathological studies taken from the auditory canal were suggestive of pyoderma gangrenosum, a non-specific finding and a diagnosis of exclusion that could occur secondary to chronic systemic inflammatory diseases (ulcerative colitis, Crohn’s disease, rheumatoid arthritis, vasculitic disorders) and myeloproliferative disorders.…”

Section: Etiopathogenesismentioning

confidence: 99%

Post-inflammatory acquired atresia of the external auditory canal

Kmeid

Nehmé

2019

Journal of Otology

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Acquired atresia of the external auditory canal (EAC) is a rare cause of conductive hearing loss. It has been traditionally classified into 4 categories: traumatic, post-operative, neoplastic and inflammatory. Post-inflammatory acquired auditory canal atresia is thought to be the result of chronic and repetitive infectious bouts affecting the auditory canal. Nevertheless, the underlying pathophysiology of this disorder is yet to be fully elucidated. Current data fail to clearly state the impact that certain underlying systemic disorders may have on the EAC. The possible association to metabolic disturbances such as iron deficiency is also emphasized. In the light of these findings, this analysis can be used to improve the classification of this entity thereby standardizing the assessment of therapeutic approaches.

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Section: Etiopathogenesismentioning

confidence: 99%

Post-inflammatory acquired atresia of the external auditory canal

Kmeid

Nehmé

2019

Journal of Otology

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“…Стенозом же является сужение наружного слухового прохода на некотором протяжении, которое вызвано либо врожденными пороками развития НСП [14], либо является приобретенным, вторичным, при экзостозах, персистирующем наружном отите [15], травме (хирургической или нехирургической), при злокачественных новообразованиях [16,17] или облучении [18]. Описаны случаи развития стеноза НСП после длительного использования капель борного спирта [19].…”

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Acquired atresia and stenosis of the external acoustic meatus

Кондратчиков

Диаб

Korvyakov

et al. 2017

Vestn. otorinolaringol.

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Acquired atresia of the external acoustic meatus is a rare pathological condition characterized by obliteration of the medial part of the external acoustic canal by a soft fibrous plug. The present article presents an overview of a series of cases of acquired atresia and stenosis of the external acoustic meatus with the description of etiology, pathogenesis, and methods for the treatment of this condition. In the majority of the cases, atresia develops at the final stage of granulation external otitis with or without an accompanying dermatological pathology. Another common cause of the acquired atresia of the external acoustic meatus is the fracture of the temporal bone as well as extensive ear surgery, radiation therapy and a neoplasm in the auditory passage. The surgical strategy for the management of the acquired atresia and stenosis of the external acoustic meatus consists, besides the excision of the fibrous plug, of the application of the cutaneous flaps and/or transplants to cover the bare parts of the bone portion of the affected external canal. In spite of such treatment, the state of the external acoustic canal remains unstable, and a relapse of its atresia and stenosis can not be wholly excluded.

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