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AJNR - American Journal of Neuroradiology

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High Uptake of ¹²³I-metaiodobenzylguanidine Related to Olfactory Neuroblastoma Revealed by Single-photon Emission CT

Toshio Sasajima^,a, Hiroyuki Kinouchi^a, Noriaki Tomura^a, Jiro Watarai^a and Kazuo Mizoi^a

^a From the Neurosurgical Service (T.S., H.K., K.M.) and Department of Radiology (N.T., J.W.), Akita University School of Medicine, Akita, Japan.

View larger version (73K): [in a new window]   FIG 1. Axial-plane MR images show expansile bifrontal tumor with dense enhancement (from left to right: T1-weighted image [380/13/2], postcontrast T1-weighted image [380/13/2], and T2-weighted image [4800/108/2])

View larger version (101K): [in a new window]   FIG 2. Coronal (left) and sagittal (right) planes on postcontrast T1-weighted images (380/13/2) reveal an enhancing tumor extending from the left nasal cavity into anterior frontal cranial fossae

View larger version (105K): [in a new window]   FIG 3. Axial-plane 123I-MIBG SPECT image 30 minutes after IV injection of 123I-MIBG at a dose of 111 MBq shows intense uptake in the tumor