PT  - JOURNAL ARTICLE
AU  - Gu, Bingxin
AU  - Yang, Zhongyi
AU  - Song, Shaoli
TI  - Primary mesenchymal tumors of the prostate in <sup>18</sup>F-FDG PET/CT: A pictorial essay.
DP  - 2020 May 01
TA  - Journal of Nuclear Medicine
PG  - 1180--1180
VI  - 61
IP  - supplement 1
4099  - http://jnm.snmjournals.org/content/61/supplement_1/1180.short
4100  - http://jnm.snmjournals.org/content/61/supplement_1/1180.full
SO  - J Nucl Med2020 May 01; 61
AB  - 1180Objectives: 1. To review the literature of prostate primary mesenchymal tumors, 2. To evaluate the features of 18F-FDG PET/CT imaging, 3. To summarize the advantages and disadvantages of 18F-FDG PET/CT, and 4. To propose diagnostic strategies. Primary mesenchymal tumors of the prostate are extremely rare, which occupy less than 1% of all prostate tumors. However, due to lack of experience, it often caused considerable diagnostic difficulty when encountered. 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography/computed tomography (PET/CT), which combined anatomical and metabolic information, could serve as a more powerful non-invasive modality in the diagnose of prostate primary mesenchymal tumors than CT alone. In this educational exhibit, we will present three cases of prostate primary mesenchymal tumors: prostate rhabdomyosarcoma, primary prostate stromal sarcoma and prostate solitary fibrous tumor. The clinical manifestations, pathology and PET/CT features will be reviewed. Combining with previous reports, we will summarize the advantages and disadvantages of 18F-FDG PET/CT in the clinical utility of prostate primary mesenchymal tumors. With the guidance of 18F-FDG PET/CT, the diagnostic accuracy rate of pathology will be improved. With the information presented, the nuclear medicine physicians and presidents will be able to optimize the use of PET/CT in imaging of patients with prostate primary mesenchymal tumors.