The olfactory system - 23/10/13

Doi : 10.1016/j.diii.2013.06.006

N. Leboucq ^⁎ , N. Menjot de Champfleur, S. Menjot de Champfleur, A. Bonafé
Service de neuroradiologie, hôpital Gui-de-Chauliac, CHRU de Montpellier, 80, avenue Augustin-Fliche, 34295 Montpellier cedex 5, France

^⁎Corresponding author.

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Abstract

Any dysfunction in olfaction requires a radiological exploration comprising the nasal cavity, the anterior base of the skull, in particular the frontal and temporal lobes. MRI is the reference examination, due to the frontal plane and the T1, T2 volume maps. In the child, aplasia of the olfactory bulbs falls within a polymalformation (CHARGE) or endocrine (Kallman) context. In the adult, rhino sinus disease and meningiomas are the most common etiologies. Frontal or temporal impairment: tumoral or vascular and neurodegenerative disorders (Parkinson's disease) may accompany a loss of olfaction.

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Keywords : Cranial nerves, Nasal sinus cavities, Brain, MRI, Scanography