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  • Title: Scanning electron microscopy of a liver cavernous hemangioma.
    Author: Yamamoto K, Itoshima T, Ito T, Ukida M, Ogawa H, Kitadai M, Hattori S, Mizutani S, Nagashima H.
    Journal: Gastroenterol Jpn; 1983 Feb; 18(1):15-20. PubMed ID: 6832546.
    Abstract:
    A 39-year-old female with a large cavernous hemangioma of the liver was successfully treated by ligation of the left hepatic artery. A wedge biopsy specimen of the hemangioma was obtained after the ligation and was examined by scanning electron microscopy. The hemangioma was demarcated from the surrounding normal liver parenchyma and had a labyrinth of caves 50-150 microns in diameter. The caves were separated by fibrous septa 20-40 microns in width. Endothelial cells of the caves were spindle-shaped and arranged in parallel. The surface property of the caves resembled that of the hepatic artery and differed from that of the portal vein or hepatic vein. These findings support that the cavernous hemangioma of the liver was supplied by the hepatic artery. The labyrinthine structure of the cavernous hemangioma may explain the long standing contrast enhancement of the hemangioma after hepatic arteriography.
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