A Case of Cavernous Hemangioma of the Liver Associated with the Hump Sign and Compression of the Hepatic Vein
永田 宰, 字都 公之, 瀧井 優, 林市 朗, 加地 正郎
Osamu NAGATA, Koji UTO, Masaru TAKII, Ichiro HAYASHI, Masaro KAJI
The First Department of Internal Medicine, Kurume University School of Medicine
hemangioma, ultrasonic diagnosis, liver
A 45-year-old male was admitted for examination of the liver. Heterogenous and hyperreflective nodules were found in the right posterior segment. These nodules compressed the right hapatic vein and a hump sign was demonstrated on the diaphragmatic surface of the liver. With CT examination, low density areas were found in the right lobe of the liver and by the dynamic study of the largest tumor, it was enhanced from its margin to the center and the high density of the tumor persisted in the late phase. By the hepatic arteriography, hypervascularity and cotton wool like poolings which continued from the early arterial phase to the late venous phase were demonstrated. Because of these findings, the liver tumors were diagnosed as cavernous hemangioma.
Compression of the vessels and the hump sign is generally considered as the findings of the solid tumor. However, these findings are also found in patients with cavernous hemangioma of the liver.