CT, MRI and18F-FDG PET/CT features of extarmedullary plasmacytoma
10.13929/j.1003-3289.201907159
- Author:
Xin LIU
1
Author Information
1. The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China
- Publication Type:Journal Article
- Keywords:
Fluorodeoxyglucose F18;
Magnetic resonance imaging;
Plasmacytoma;
Positron-emission tomography;
Tomography, X-ray computed
- From:
Chinese Journal of Medical Imaging Technology
2019;35(12):1870-1874
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To investigate CT, MRI and 18F-FDG PET/CT manifestations of extarmedullary plasmacytoma (EMP). Methods: CT, MRI and 18F-FDG PET/CT data of 14 EMP patients confirmed by pathology were analyzed retrospectively, and the imaging characteristics of EMP were explored. Results: Among 4 patients who received CT, the lesions were mainly isodensity, 1 case showed adjacent bone destruction but no significant change of osteosclerosis in the damaged site. In 7 patients who received MRI, the signals of lesions were uniform, dominated by equal or slightly lower T1 signals and equal or slightly higher T2 signals. Flowing avoid effect could be seen in or around the lesions in 2 cases. Uniform or non-uniform moderate to severe enhancement were observed both in CT and MRI, while small vascular shadows could be seen at the edge of some lesions, and significant enhancement intervals could be seen in the lesions in 5 cases. In 9 patients underwent 18F-FDG PET-CT scanning, soft tissue masses or equal density nodular shadows were observed in 7 cases, while only local soft tissue thickening with nodular shape were noticed in 2 cases, all were accompanied by massive moderate-significant increase in radioactive uptake, and the maximum value of SUV was 8.43±3.33. Conclusion: CT, MRI and 18F-FDG PET/CT have some value in diagnosis and differential diagnosis, also for guiding clinical treatment options and prognosis evaluation of EMP.
