Magnetic Resonance Imaging of the Olfactory Apparatus

Iida, Yusuke; Naito, Mutuo; Asahina, Norihiko; Okuda, Kazuko; Kato, Masaki; Okamoto, Yosito; Zusho, Hiroyuki; Tanioka, Hisaya

doi:10.1001/archotol.1994.01880320069015

Cited by 4 publications

(3 citation statements)

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“…MRI thus enables diagnosis of morphological abnormality of these structures in examination of congenital anosmia. In addition, 3 mm-thick coronal images can almost always reveal these structures (1,4), while axial and sagittal images are not sufficient to demonstrate hypoplasty or aplasty of the olfactory bulb and olfactory tract since they may not reveal these structures when they are present in the gap between slices. In our study, coronal imaging was routinely performed and we could obtain accurate images of the olfactory pathway.…”

Section: Discussionmentioning

confidence: 99%

Magnetic Resonance Imaging for Diagnosis of Congenital Anosmia

Aiba

Inoue

Matsumoto³

et al. 2004

Acta Oto-Laryngologica

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Magnetic Resonance Imaging (MRI) was performed on 9 patients who lacked a sense of smell since birth. Seven of them, including two patients with Kallmann syndrome, exhibited abnormality of the olfactory bulb, olfactory tract, olfactory sulcus, or rectus gyrus, with some variation among patients in type and degree of abnormality. The other two patients exhibited normal olfactory pathway morphology, and for them the possibility of acquired sensorineural anosmia could not be ruled out. MRI is useful for determining whether patients with congenital anosmia have olfactory pathway anomalies. Many patients with congenital anosmia and hypoplasty or aplasty of the olfactory pathway nevertheless had no gonadal or endocrinological disorders.

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Section: Discussionmentioning

confidence: 99%

Magnetic Resonance Imaging for Diagnosis of Congenital Anosmia

Aiba

Inoue

Matsumoto³

et al. 2004

Acta Oto-Laryngologica

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“…Age distribution according to the form and signal intensity pattern of the OB can be seen in Fig 4. Discussion MR imaging has been successfully used to analyze the normal adult anatomy of the OBs [1][2][3][4] and to depict abnormal olfactory pathways. [5][6][7] Embryonic and fetal maturational changes have been studied in a fixed specimen.…”

Section: Resultsmentioning

confidence: 99%

“…N ormal anatomy of the olfactory pathways and many congenital or acquired anomalies have been repetitively described. [1][2][3][4][5][6] Despite considerable advance in knowledge regarding the complex neuronal network associated with olfactory stimulation, information describing the normal maturation process in the neonatal period and childhood is scarce. There is experimental evidence that anomalies of the face are linked to abnormal development of the olfactory placode and bulbs.…”

Section: Discussionmentioning

confidence: 99%

Maturation of the Olfactory Bulbs: MR Imaging Findings

Schneider¹,

Floemer²

2009

AJNR Am J Neuroradiol

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Reversible hyposmia caused by intracranial tumour

et al. 1999

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Two patients with hyposmia caused by an intracranial tumour recovered olfactory functions after craniotomy. The first case was a 68-year-old male with a tumour metastasized from the lung to the right frontal lobe. The second case was a 75-year-old male with meningioma of the right frontal lobe. Results of T & T olfactometry and venous olfaction tests also indicated suspected central hyposmia. Magnetic resonance imaging (MRI) indicated compression of the frontal lobe by intracranial tumour. Pressure on the olfactory centre located in the frontal lobe produced hyposmia. Decompression of the frontal lobe by craniotomy improved the sense of smell. Therefore, some cases of olfactory disturbance caused by intracranial tumour may be reversible if they are the result of simple compression of the olfactory centre.

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Magnetic Resonance Imaging of the Olfactory Apparatus

Cited by 4 publications

References 0 publications

Magnetic Resonance Imaging for Diagnosis of Congenital Anosmia

Magnetic Resonance Imaging for Diagnosis of Congenital Anosmia

Maturation of the Olfactory Bulbs: MR Imaging Findings

Reversible hyposmia caused by intracranial tumour

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