Mar 15, 2000

Imaging of atypical hemangiomas of the liver with pathologic correlation

Radiographics : a Review Publication of the Radiological Society of North America, Inc
V VilgrainY Menu

Abstract

Compared with the imaging features of typical hepatic hemangiomas, the imaging features of atypical hepatic hemangiomas have not been well studied or well described. Knowledge of the entire spectrum of atypical hepatic hemangiomas is important and can help one avoid most diagnostic errors. A frequent type of atypical hepatic hemangioma is a lesion with an echoic border at ultrasonography. Less frequent types are large, heterogeneous hemangiomas; rapidly filling hemangiomas; calcified hemangiomas; hyalinized hemangiomas; cystic or multilocular hemangiomas; hemangiomas with fluid-fluid levels; and pedunculated hemangiomas. Adjacent abnormalities consist of arterial-portal venous shunt, capsular retraction, and surrounding nodular hyperplasia; hemangiomas can also develop in cases of fatty liver infiltration. Associated lesions include multiple hemangiomas, hemangiomatosis, focal nodular hyperplasia, and angiosarcoma. Types of atypical evolution are hemangiomas enlarging over time and hemangiomas appearing during pregnancy. Complications consist of inflammation, Kasabach-Merritt syndrome, intratumoral hemorrhage, hemoperitoneum, volvulus, and compression of adjacent structures. In some cases, such as large heterogeneous hemangioma...Continue Reading

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Citations

Mentioned in this Paper

Thrombocytopenia
Magnetic Resonance Imaging
Hepatitis
Fatty Liver
Bulla
Kasabach-Merritt Syndrome
Portal Vein Structure
Pregnancy Complications, Neoplastic
Hepatic
Differential Diagnosis

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