TY - JOUR
T1 - Usefulness of novel imaging modalities in diagnosis of focal nodular hyperplasia of the liver
AU - Nishigaki, Yohichi
AU - Tomita, Eiichi
AU - Matsuno, Yoshihiko
AU - Goto, Ken
AU - Ohnishi, Takaya
AU - Tanaka, Yuji
AU - Iwai, Hiroko
AU - Asano, Hisao
AU - Yasuda, Ichiro
AU - Nagura, Kazuo
AU - Wakahara, Tatsuo
AU - Yamada, Tetsuta
PY - 1997/10
Y1 - 1997/10
N2 - A 17-year-old woman was admitted because of a liver tumor found incidentally by ultrasonography. Liver function was normal and there were no markers of hepatitis viruses or malignancy. Abdominal ultrasonography, computed tomography (CT), and magnetic resonance imaging revealed a mass (2cm in diameter) in the lateral segment of the left lobe of the liver. The lesion was not detected by hepatic arteriography. However, dynamic CT with fast scanning and dynamic CO2-enhanced ultrasonography demonstrated initial central enhancement of the mass followed by centrifugal spread of enhancement to the periphery. Color Doppler flow imaging detected a central color spot, shown to be an artery by a pulsed Doppler spectrum analysis. Fine-needle biopsy confirmed a diagnosis of focal nodular hyperplasia. Dynamic CT with fast scanning, dynamic CO2-enhanced ultrasonography, and color Doppler flow imaging were useful in detecting the vascular pattern specific to focal nodular hyperplasia. Investigation of further cases with these novel imaging modalities should help to establish a comprehensive diagnostic procedure and thus avoid unnecessary surgery for focal nodular hyperplasia, which is a completely benign lesion.
AB - A 17-year-old woman was admitted because of a liver tumor found incidentally by ultrasonography. Liver function was normal and there were no markers of hepatitis viruses or malignancy. Abdominal ultrasonography, computed tomography (CT), and magnetic resonance imaging revealed a mass (2cm in diameter) in the lateral segment of the left lobe of the liver. The lesion was not detected by hepatic arteriography. However, dynamic CT with fast scanning and dynamic CO2-enhanced ultrasonography demonstrated initial central enhancement of the mass followed by centrifugal spread of enhancement to the periphery. Color Doppler flow imaging detected a central color spot, shown to be an artery by a pulsed Doppler spectrum analysis. Fine-needle biopsy confirmed a diagnosis of focal nodular hyperplasia. Dynamic CT with fast scanning, dynamic CO2-enhanced ultrasonography, and color Doppler flow imaging were useful in detecting the vascular pattern specific to focal nodular hyperplasia. Investigation of further cases with these novel imaging modalities should help to establish a comprehensive diagnostic procedure and thus avoid unnecessary surgery for focal nodular hyperplasia, which is a completely benign lesion.
KW - Dynamic CO-enhanced ultrasonography
KW - Dynamic CT
KW - Focal nodular hyperplasia
UR - http://www.scopus.com/inward/record.url?scp=9844249102&partnerID=8YFLogxK
U2 - 10.1007/BF02934121
DO - 10.1007/BF02934121
M3 - 学術論文
C2 - 9349997
AN - SCOPUS:9844249102
SN - 0944-1174
VL - 32
SP - 677
EP - 683
JO - Journal of Gastroenterology
JF - Journal of Gastroenterology
IS - 5
ER -