J Korean Soc Radiol.  2011 Feb;64(2):117-121. 10.3348/jksr.2011.64.2.117.

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

Affiliations
  • 1Department of Radiology, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea. sklee@dsmc.or.kr

Abstract

We report herein two cases of adulthood sinonasal alveolar rhabdomyosarcoma that showed intense hypermetabolism and disseminated metastasis on 18F-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 mass shows the "botryoid sign" on CECT or Gd-T1WI, and intense hypermetabolism with disseminated metastases on 18F-FDG PET/CT.


MeSH Terms

Fluorodeoxyglucose F18
Magnetic Resonance Imaging
Neoplasm Metastasis
Rhabdomyosarcoma
Rhabdomyosarcoma, Alveolar
Tomography, X-Ray Computed
Fluorodeoxyglucose F18
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