Computed tomography, magnetic resonance imaging, and Fdeoxyglucose positron emission computed tomography/computed tomography findings of alveolar soft part sarcoma with calcification in the thigh: A case report  

作　　者：Zeng-Jie Wu Tian-Tian Bian Xiao-Hong Zhan Cheng Dong Yan-Li Wang Wen-Jian Xu 

机构地区：[1]Department of Radiology,The Affiliated Hospital of Qingdao University,Qingdao 266000,Shandong Province,China [2]Breast Disease Center,The Affiliated Hospital of Qingdao University,Qingdao 266000,Shandong Province,China [3]Department of Pathology,The Affiliated Hospital of Qingdao University,Qingdao 266000,Shandong Province,China [4]Department of PET/CT,The Second Affiliated Hospital of Qingdao University,Qingdao 266000,Shandong Province,China

出　　处：《World Journal of Clinical Cases》2020年第15期3349-3354,共6页世界临床病例杂志

摘　　要：BACKGROUND Alveolar soft part sarcoma(ASPS)is an extremely rare malignant sarcoma,accounting for less than 1%of all soft-tissue sarcomas.However,limited information is available on multimodal imaging[computed tomography(CT),magnetic resonance imaging(MRI),and positron emission computed tomography/computed tomography(PET/CT)]of ASPS.CASE SUMMARY This study reports a case of a 35-year-old female patient with ASPS of the left thigh with lung metastasis.The patient presented with a 1-year history of a palpable mass in the lower extremity,which exhibited rapid growth for 3 wk.CT,MRI,and F-deoxyglucose PET/CT examinations were performed.CT showed a slightly hypodense or isodense mass with patchy calcifications.On MRI examination,the mass manifested hyperintensity on T1-weighted,T2-weighted,and diffusion-weighted images with some signal voids.PET/CT images demonstrated an intensely hypermetabolic mass in the left thigh and hypermetabolic nodules in lungs.CONCLUSION ASPS should be considered as a possible diagnosis when a slow-growing mass is detected in the soft tissue of the extremities,with hyperintensity and numerous signal voids on T1-weighted,T2-weighted,and diffusion-weighted images and intense F-deoxyglucose uptake on PET/CT.ASPS can have calcifications on CT.

关 键 词：Alveolar soft part sarcoma CALCIFICATION Magnetic resonance imaging Positron emission computed tomography/computed tomography Case report 

分 类 号：R738.6[医药卫生—肿瘤] R445[医药卫生—临床医学]