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The CT and MR Imaging Findings of Adulthood Sinonasal Alveolar Rhabdomyosarcoma with Disseminated Metastases on $^{18}F$-FDG PET/CT: Report of Two Cases  

Bahn, Young-Eun (Department of Radiology, Dongsan Medical Center, Keimyung University School of Medicine)
Lee, Sang-Kwon (Department of Radiology, Dongsan Medical Center, Keimyung University School of Medicine)
Publication Information
Journal of the Korean Society of Radiology / v.64, no.2, 2011 , pp. 117-121 More about this Journal
Abstract
We report herein two cases of adulthood sinonasal alveolar rhabdomyosarcoma that showed intense hypermetabolism and disseminated metastasis on $^{18}F$-FDG PET/CT. The contrast-enhanced CT (CECT) and gadolinium-enhanced T1-weighted images(Gd-T1WI) showed multiple rings of intense enhancement (the "botryoid sign") of the mass. Adulthood rhabdomyosarcoma should be considered when a sinonasal massshows the "botryoid sign" on CECT or Gd-T1WI, and intense hypermetabolism with disseminated metastases on 18F-FDG PET/CT.
Keywords
Rhabdomyosarcoma, Alveolar; Fluorodeoxyglucose F18; X-Ray Computed Tomography; Magnetic Resonance Imaging;
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