Osteoma of the internal auditory canal - 27/05/10
Corresponding author. Service d’ORL et de chirurgie de la face et du cou, centre hospitalier universitaire, BP 69, 63003 Clermont-Ferrand cedex 1, France. Tel.: +04 73 75 16 80; fax: +04 73 75 16 82.Bienvenue sur EM-consulte, la référence des professionnels de santé.
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| pages | 5 |
| Iconographies | 6 |
| Vidéos | 0 |
| Autres | 0 |
Summary |
Objective |
Osteoma occurs almost exclusively in the head and neck region, only rarely developing into the internal auditory canal. We report an incidental finding of a case in the radiological evaluation of a patient with left hemifacial spasm.
Patients and methods |
A 79-year-old woman consulted for left hemifacial spasm associated with left anacusis. Symptoms occurred up to 30 years prior to the first radiological investigations. Computed tomographic (CT) and magnetic resonance (MRI) images were taken.
Results |
MRI demonstrated a left internal auditory canal lesion with spontaneous hypointense signal on T1- and T2-weighted images. CT showed the lesion as a typically dense and opaque osteoma. It measured 0.6cm in maximum size. No surgery was performed because of the slow-growing features of the lesion. Clinical monitoring was recommended.
Conclusion |
Osteomas are diagnosed incidentally in asymptomatic patients. Our case was symptomatic and raised the question of surgical management. This article discusses the presentation and management associated with this exceptional osteoma location.
Le texte complet de cet article est disponible en PDF.Keywords : Osteoma, Internal auditory canal, Hemifacial spasm
Plan
Vol 127 - N° 1
P. 15-19 - mars 2010 Retour au numéro
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