A large lipoma and a large angiomyolipoma of the liver, one case each, are described. In the first case, a 24 X 14-cm homogeneous mass demonstrated a fatty density (-96H) on computed tomography (CT), echogenicity on sonography, and fine neovascular vessels on angiography in the right lobe of the liver. Histopathologic diagnosis of the resected specimen was lipoma. The second case showed a 9-cm fatty mass (-66H) with some enhanced interior nodules in the left lateral area of the liver on CT. Sonography disclosed a large echogenic mass with echolucent nodules, which were seen as stains on the angiogram.
Angiomyolipoma was the histopathologic diagnosis. Among these diagnostic modalities, the C T scan provided the most specific and reliable findings. Both patients are doing well more than 2 years and 9 months after resection.
Cancer 59:916-921, 1987.
IPOMATOUS TUMORS of the liver are extremely rare,'
L and mostly an incidental finding at autopsy. We now report one case each of a large lipoma and a large angiomyolipoma of the liver. The preoperative diagnosis by various imaging modalities was benign lipoma or a mass of predominantly fat tissue.
Case Reports
Case 1
A 63-year-old woman sought a medical examination in August 1976, because of a full sensation in the abdomen, and an abdominal tumor was found. A large lipomatous tumor of the liver was the diagnosis based on a computed tomography (CT) scan and angiography at another hospital. During the 6-year follow-up, the tumor gradually increased in size and created an abdominal compression feeling, and she was referred to our hos- pital for operation in June 1983. Her past history was unre-~