Bright-dark ring sign in MR imaging of hepatic epithelioid hemangioendothelioma.
We describe the imaging findings in a rare case of multifocal nodular form of hepatic epithelioid hemangioendothelioma on ultrasound (US) and dynamic contrast-enhanced spiral computed tomography (CT) and MRI. The nodules showed multilayered target appearance on MR images with prominent peripheral rim with high signal intensity (SI) on T1-weighted and very low SI on T2-weighted images, corresponding to thrombosed vascular channels. The above combination of imaging findings is to our knowledge distinct and should suggest the diagnosis of hepatic epithelioid hemangioendothelioma.
Economopoulos
Nikos
N
2nd Department of Radiology, General University Hospital ATTIKON, National and Kapodistrian University of Athens, Greece.
Kelekis
Nikolaos L
NL
Argentos
Stylianos
S
Tsompanlioti
Christina
C
Patapis
Pavlos
P
Nikolaou
Ioanna
I
Gouliamos
Athanassios
A
D000328:Adult; D003287:Contrast Media; D018323:Hemangioendothelioma, Epithelioid / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D008113:Liver Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008297:Male; D036542:Tomography, Spiral Computed; D014463:Ultrasonography
D003287:Contrast Media