Imaging findings of abdominal peripheral primitive neuroectodermal tumor: report of four cases with pathological correlation.
Peripheral primitive neuroectodermal tumors (peripheral PNETs) are rare in the abdomen. We report the imaging findings of four peripheral PNETs arising in the abdomen. Three were ill-demarcated tumors and one was a well-demarcated tumor, with extensive local invasion and lymph node metastasis in two cases, respectively. The tumors are of inhomogeneous attenuation and heterogeneous enhancement after intravenous administration of contrast materials. Although their imaging manifestations cannot distinguish them from other sarcomas, recognition of these imaging features may be helpful in suggesting the possibility of peripheral PNETs in some cases.
Gong
Jingshan
J
Department of Radiology, Shenzhen People's Hospital, Second Clinical College, Jinan University, Guangdong Province, China. jshgong@sina.com
Zhang
Yue
Y
Zuo
Min
M
Yang
Zhong
Z
Zang
Da
D
Bao
Shiyun
S
Xu
Jianmin
J
Yu
Xiaofang
X
Wang
Xiaomei
X
D000008:Abdominal Neoplasms / Q000000981:diagnostic imaging*; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008875:Middle Aged; D017599:Neuroectodermal Tumors / Q000000981:diagnostic imaging*; D011860:Radiography, Abdominal / Q000379:methods*; D013223:Statistics as Topic; D014057:Tomography, X-Ray Computed / Q000379:methods*