Wei Yu1, Zai-Zhu Zhang1, Ou Wang2, Ming-Qian Huang3, Wei-Bo Xia2, Ali Guermazi4. 1. Department of Radiology, Peking Union Medical College Hospital, Beijing 100730, China. 2. Department of Endocrinology, Peking Union Medical College Hospital, Beijing 100730, China. 3. Department of Radiology, Stony brook University Hospital, Syosset, NY 11791, USA. 4. Department of Radiology, Boston University School of Medicine, Boston, MA 02118, USA.
Abstract
BACKGROUND: To introduce the concept of "ring sign" and to evaluate its role in the diagnostic imaging of osteochondromyxoma in patients with Carney complex (CNC). METHODS: Three patients presenting osteochondromyxoma with CNC were included for evaluation of the ring sign on different imaging modalities, including radiographs, computed tomography, and magnetic resonance imaging. The literature was reviewed for further discussion. RESULTS: The ring sign in osteochondromyxoma could be seen on radiographs, computed tomography, and magnetic resonance images in all three patients at each of the involved sites. The morphological patterns and the number of ring signs varied by case, site, and imaging method. Some previous reports have shown images that contain ring signs, but do not identify them as such. CONCLUSIONS: Ring sign can be considered as a relatively specific sign, helpful for the imaging diagnosis of osteochondromyxoma in the CNC. 2019 Quantitative Imaging in Medicine and Surgery. All rights reserved.
BACKGROUND: To introduce the concept of "ring sign" and to evaluate its role in the diagnostic imaging of osteochondromyxoma in patients with Carney complex (CNC). METHODS: Three patients presenting osteochondromyxoma with CNC were included for evaluation of the ring sign on different imaging modalities, including radiographs, computed tomography, and magnetic resonance imaging. The literature was reviewed for further discussion. RESULTS: The ring sign in osteochondromyxoma could be seen on radiographs, computed tomography, and magnetic resonance images in all three patients at each of the involved sites. The morphological patterns and the number of ring signs varied by case, site, and imaging method. Some previous reports have shown images that contain ring signs, but do not identify them as such. CONCLUSIONS: Ring sign can be considered as a relatively specific sign, helpful for the imaging diagnosis of osteochondromyxoma in the CNC. 2019 Quantitative Imaging in Medicine and Surgery. All rights reserved.
Entities:
Keywords:
Carney complex (CNC); computed tomography; magnetic resonance imaging; osteochondromyxoma; radiograph; ring sign
Authors: J A Carney; L Boccon-Gibod; D E Jarka; Y Tanaka; R G Swee; K K Unni; C A Stratakis Journal: Am J Surg Pathol Date: 2001-02 Impact factor: 6.394
Authors: Nikos A Courcoutsakis; Christina Tatsi; Nicholas J Patronas; Chiy-Chia Richard Lee; Panos K Prassopoulos; Constantine A Stratakis Journal: Insights Imaging Date: 2013-01-12