CT features and differential diagnosis of focal nodular hyperplasia of the liver

VernacularTitle:肝脏局灶性结节增生的螺旋CT表现及鉴别诊断
Author: Dong CHEN ; Heng PAN ; Changnong XIE
Publication Type:Journal Article
Keywords: Focal nodular hyperplasia; Liver disenses; Tomngraphy,X-ray computed
From: Chinese Journal of Primary Medicine and Pharmacy 2009;16(1):6-7,后插4
CountryChina
Language:Chinese
Abstract: Objective To discuss the appearances of focal nodular hyperplasia(FNH) of the liver on the muhiphase helical CT scanning, and to improve its diagnostic accuracy with CT. Methods Helical CT scanning of pre- and post- contrast arterial phase,portal venous phase and delayed phase was performed in 10 cases with surgically and pathologically proved FNH. Results On pre- contrast scans,9 of 11 FNH lesions were hypodense(either homo-geneous or non-homogeneous), the other two lesions were isodense. On the arterial phase scans, all lesions were markedly and homogeneously enhanced,except for the central scar area. Tortuous and dilated arteries were seen at the center or peripheral area in 3 out of 11 lesions. On the portal phase and delayed phase scans ,4 of 11 lesions turned to isedanse of slightly hypodense,7 lesions remained slightly hyperdense. Central scar was found in 8 FNH lesions ,2 of them showed no enhancement while the other six demonstrated late enhancement. Conclusion Mulfiphase helical CT scanning can fully reflect the blood supplying and pathologic features of FNH, and it is of great value in diagnosing and differentiating FNH.