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  Contents > Previous page > Article detail print Order
o Issue N# 5 - 2008 o

OTOLOGY

Tuberculous otomastoiditis: Advantage of MRI in the treatment survey


Authors : Moya Plana A, Malinvaud D, Mimoun M, Huart J, Bonfils P. (Paris)

Ref. : Rev Laryngol Otol Rhinol. 2008;129,5:301-304.

Article published in french
Downloadable PDF document french



Summary : Purpose: Mycobacterium tuberculosis is a rare cause of otomastoiditis, accounting for less than a percent of chronic otitis media. The diagnosis is difficult and typically delayed because most physicians are unfamiliar with its presenting features and special laboratory requirements. Such delayed diagnosis leads to delayed treatment onset, and thus, increases complications frequency as irreversible hearing loss, facial palsy or meningo-encephalitis complications. Moreover, non specific CT findings do not allow any accurate evaluation of inner ear lesions initially and under treatment. Cas report: We described the first case of MRI of tuberculous mastoiditis and the evolution over a 2-years follow-up period. A patient with a clinical history of chronic otorrhea, resistant to conventional therapy, was referred to our department. CT and MRI permitted to describe the initial lesions and to appreciate the medical treatment efficiency (in order to perform surgery in case of failure or complications). Under medical treatment, MRI showed abscess volume decrease at three months while CT was still unchanged. Remineralization only was observed on CT at 12 months. The patient‘s healing was obtained after 15 months of antituberculous medication. Conclusion: MRI has the advantage over CT to demonstrate directly abscess collections that superimposed to areas of bone destructions within the temporal bone. Initially, MRI allows an accurate evaluation of abscess collections and possible meningo-encephalitis complications. Moreover, MRI precises earlier than CT the improvement of lesions and the efficacy of medical treatment, and thus, permitting us to postpone surgery where it is unnecessary.

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