The olfactory system.
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.
Service de neuroradiologie, hôpital Gui-de-Chauliac, CHRU de Montpellier, 80, avenue Augustin-Fliche, 34295 Montpellier cedex 5, France. Electronic address: leboucq.nicolas@neuf.fr.
N
N
Leboucq
N
N
Menjot de Champfleur
S
S
Menjot de Champfleur
A
A
Bonafé
D000328:Adult; D058747:CHARGE Syndrome / Q000175:diagnosis / Q000473:pathology; D002648:Child; D003390:Cranial Nerve Neoplasms / Q000175:diagnosis* / Q000473:pathology; D003937:Diagnosis, Differential; D005625:Frontal Lobe / Q000473:pathology; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D017436:Kallmann Syndrome / Q000175:diagnosis / Q000473:pathology; D008279:Magnetic Resonance Imaging / Q000379:methods*; D000857:Olfaction Disorders / Q000175:diagnosis* / Q000473:pathology; D009830:Olfactory Bulb / Q000002:abnormalities / Q000473:pathology; D009832:Olfactory Nerve / Q000473:pathology*; D020431:Olfactory Nerve Diseases / Q000175:diagnosis* / Q000473:pathology; D010300:Parkinson Disease / Q000175:diagnosis / Q000473:pathology; D013702:Temporal Lobe / Q000473:pathology
Brain; Cranial nerves; MRI; Nasal sinus cavities; Scanography