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Published on: January 7, 2019
[Sonographic and computed tomography features of hepatic angiomyolipoma]
Qing Zhang1, Qing-li Zhu, Yu-xin Jiang
1Department of Ultrasound, PUMC Hospital, CAMS and PUMC, Beijing 100730, China.
Objective:
To investigate the sonographic and computed tomography (CT) features of hepatic angiomyolipoma (HAML).
Methods:
Sonographic and CT findings were analyzed in 12 patients (9 females and 3 males) with pathologically proved HAML. The size, margin, location, gray scale, and color Doppler flow imaging characteristics were observed.
Results:
HAML was located correctly with ultrasound in all patients. The sonographic features of 12 HAML included regular shape, clear margin, and three type of echoes including homogeneous hyperechoes (n=5), heterogeneous internal echoes (n=5), or homogeneous hypoechoes (n=2). The arterial flow signal was detected in two HAML. The CT findings included adipose density (n=3), soft tissue density (n=3), and mixed density (n=6). The sonographic and CT findings were correlated with the composition and distribution of fat, vessels, and smooth muscle tissue.
Conclusions:
Fatty tissues within HAML shows typical imaging findings. The ultrasonographic and CT have their own advantages in detecting the fatty tissue inside HAML, and therefore a combination of these two techniques may increase the diagnostic accuracy of HAML.
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