Biliary cystadenocarcinoma diagnosed with real-time contrast-enhanced ultrasonography: report of a case with diagnostic features.
Biliary cystadenocarcinoma is a very rare malignant cystic tumor of the liver, which is often misdiagnosed due to a poor recognition of it. We report a case of a 60-year-old man with biliary cystadenocarcinoma with his real time contrast enhanced ultrasound (CEUS) characteristics compared to those of computed tomography (CT) and magnetic resonance imaging (MRI), which were correlated with the surgical and pathologic findings. Cystic wall enhancement, internal septations and intra-cystic solid portions in the arterial phase were observed on CEUS after contrast agent injection. The enhancement was washed out progressively and depicted as hypo-enhancement in the portal and late phases. CT revealed a large irregular cystic lesion in the left liver lobe with no clear septations and solid components. MRI showed an irregular cystic occupying lesion with septations.
Ren
Xiao-Long
XL
Department of Ultrasonography, General Hospital of Lanzhou Military Area Command, 333 Binhe South Road, Lanzhou 730050, Gansu Province, China. renxiaolong70@hotmail.com
Yan
Rui-Ling
RL
Yu
Xiao-Hui
XH
Zheng
Ying
Y
Liu
Jun-E
JE
Hou
Xiao-Bin
XB
Zuo
Si-Yang
SY
Fu
Xiao-Yan
XY
Chang
Hong
H
Lu
Jian-Hong
JH
D001661:Biliary Tract Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D003287:Contrast Media; D003536:Cystadenocarcinoma / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D006498:Hepatectomy; D006801:Humans; D008113:Liver Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010743:Phospholipids; D011237:Predictive Value of Tests; D013459:Sulfur Hexafluoride; D014057:Tomography, X-Ray Computed; D018615:Ultrasonography, Doppler, Color
D003287:Contrast Media; D010743:Phospholipids; C420843:contrast agent BR1; D013459:Sulfur Hexafluoride