Elsevier

Human Pathology

Volume 23, Issue 8, August 1992, Pages 953-956
Human Pathology

Case study
Hepatic sinusoidal ectasia

https://doi.org/10.1016/0046-8177(92)90411-UGet rights and content

Abstract

Oral contraceptive-associated sinusoidal ectasia is a rare lesion of unknown pathogenesis. We describe the case of a 31-year-old woman who had used oral contraceptives for 10 years and was found to have abnormal liver function tests on “routine” examination. A single 9×5×4 cm hypervascular lesion was demonstrated radiographically. The hepatic immuno-diacetic acid and liver-spleen scans were normal. One subcapsular lesion was identified in the resected right hepatic lobe; it was characterized by focal marked dilatation of the sinusoidal spaces associated with rare hepatocyte necrosis and early intrasinusoidal fibrosis. The subcapsular location and the vascular nature of this wedge-shaped lesion suggest it may represent the telangiectatic precursor of a centrally scarred focal nodular hyperplasia.

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