Korean J Pathol.
2000 May;34(5):381-385.
Hepatic Veno-occlusive Disease Developed after Irradiation: A report of three cases
- Affiliations
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- 1Department of Pathology, Yonsei University College of Medicine, Seoul 120-752, Korea.
Abstract
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Hepatic veno-occlusive disease (VOD) is a rare disease due to occlusion of the terminal
hepatic venules and/or sublobular veins, which is a result of endothelial damage from pyrrolizidine
alkaloids in herbal teas, irradiation of the liver, or chemotherapy particularly in association with
bone marrow transplantation. We recently experienced three cases of VOD developed after
radiation therapy. Two cases occurred in hepatocellular carcinoma patients of a 37-year-old man
with B viral chronic hepatitis and a 22-year-old man with B viral cirrhosis and the other in a
64-year-old patient with esophageal squamous cell carcinoma. For the treatment of hepatocellular
carcinoma, chemoembolization with lipiodol and adriamycin, and external irradiation on the liver
mass were done. The total radiation dose was 5400 cGy and 3000 cGy in each case. Five months
and 3 months after irradiation, respectively, the resected liver masses showed extensive necrosis
due to pre-operative treatment. To treat esophageal carcinoma, pre-operative concurrent
chemotherapy of 5-FU and radiation of 4500 cGY were done. One month after irradiation, the
radical esophgectomy and wedge biopsy of the liver were done. The liver of all 3 cases showed a
dark red appearance with severe congestion in contrast to the pale brown normal liver, which was
not included in the radiation field. On micoscopic examination, the terminal hepatic venules and
sublobular veins showed subintimal edema, fibrin deposition, and partial or total luminal occlusion
by loose fibrous tissue. The centrizonal sinusoids were markedly dilatated and congested with
atrophy of hepatocytes.