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.
Department of Radiology, Shenzhen People's Hospital, Second Clinical College, Jinan University, Guangdong Province, China. jshgong@sina.com
Jingshan
J
Gong
Yue
Y
Zhang
Min
M
Zuo
Zhong
Z
Yang
Da
D
Zang
Shiyun
S
Bao
Jianmin
J
Xu
Xiaofang
X
Yu
Xiaomei
X
Wang
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*