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Review
. 2009 Apr;29(2):108-13.

A shifty diagnosis: Cogan's syndrome. A case report and review of the literature

Affiliations
Review

A shifty diagnosis: Cogan's syndrome. A case report and review of the literature

G Migliori et al. Acta Otorhinolaryngol Ital. 2009 Apr.

Abstract

Cogan's syndrome is defined as a chronic inflammatory disease of unknown origin, an autoimmune disease, characterized by bilateral sensorineural hearing loss, vestibular symptoms, inflammatory ocular manifestations with variable risk of developing into a systemic disease. The onset of disease is variable but is often characterized by isolated ocular symptoms or acute ear and/or vestibular manifestations, variably associated. The diagnosis of Cogan's syndrome can be a challenge as is evident in the case described here since it is based only on the association between bilateral ocular and vestibuloauditory symptoms with no specific diagnostic tests available.

La sindrome di Cogan viene descritta come una patologia infiammatoria cronica di incerta origine, ma più propriamente è una patologia autoimmune, caratterizzata da ipoacusia neurosensoriale bilaterale, sintomatologia vestibolare e manifestazioni infiammatorie oculari con un rischio variabile di sviluppare una malattia sistemica. La malattia può insorgere soltanto con sintomi oculari o con sintomi acuti uditivi e/o vestibolari, variamente associati. Porre diagnosi di sindrome di Cogan può essere una sfida come risulta evidente nel caso descritto perché si basa soltanto sull’associazione di sintomi oculari e audio-vestibolari, in mancanza di tests diagnostici specifici.

Keywords: Autoimmunity; Cogan’s syndrome; Hearing loss; Interstitial keratitis.

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Figures

Fig. 1
Fig. 1
Normal hearing function.
Fig. 2
Fig. 2
Mild left sensorineural hearing loss.
Fig. 3
Fig. 3
Caloric testing showing left vestibular paresis.
Fig. 4
Fig. 4
HR-MRI showing abnormal MRI findings in the vestibule, semicircular canals, cochlea, vestibular nerve and first part of facial nerve on left side of head.
Fig. 5
Fig. 5
Moderate to severe left sensorineural hearing loss at high frequencies.
Fig. 6
Fig. 6
Severe to profound left hearing loss and mild right sensorineural hearing loss.
Fig. 7
Fig. 7
Caloric testing showing bilateral vestibular paresis.
Fig. 8
Fig. 8
Mild to severe right sensorineural hearing loss at high frequencies, severe to profound left hearing loss.
Fig. 9
Fig. 9
Mild right sensorineural hearing loss limited to high frequencies, severe to profound left hearing loss.
Fig. 10
Fig. 10
Mild right sensorineural hearing loss limited to 8KHz, severe to profound left hearing loss.

References

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