PMID: 16615428Apr 18, 2006Paper

Magnetic resonance imaging of olfactory neuroblastoma

Nihon Jibiinkoka Gakkai kaiho
Mitsuhiro IioSatoshi Fukuda

Abstract

Olfactory neuroblastoma is an uncommon intranasal tumor originating from olfactory neuroepithelium. Despite the development of electron microscopy and immunohistochemical testing, the pathological diagnosis of this tumor is still difficult because of the wide range of histological features. Magnetic resonance imaging (MR) of this tumor and the pattern of contrast enhancement have not been well described. The purpose of this report was to analyze the MR characteristics of olfactory neuroblastomas. The MR signal, pattern of contrast enhancement, and correlation with high-resolution computed tomography (CT) imaging were examined. Seventeen patients with olfactory neuroblastoma were treated at Hokkaido University Hospital and a related hospital during the past 25 years. MR images taken in 12 patients and CT images taken in 9 patients with histologically confirmed olfactory neuroblastoma were retrospectively reviewed. Compared with brain gray matter, 11 tumors were hypointense on T1-weighted images, 9 homogeneously and 2 heterogenously. Eight tumors were hyperintense on T2-weighted images, 3 homogeneously and 5 heterogeneously, although their appearance was less intense than that of sinusitis. Gadolinium enhancement was moderate in ...Continue Reading

Citations

Nov 18, 2008·Hematology/oncology Clinics of North America·Danny Rischin, Andrew Coleman
Feb 6, 2014·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Manzoor Ahmed, Phillip Daniel Knott

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