Hepatic complications of oral contraceptive pills and exogenous estrogens include intrahepatic canalicular cholestasis, neoplasm formation and vascular pathologies. While it remains controversial as to whether estrogen plays a role in focal nodular hyperplasia, hemangioma or hamartoma, exposure to oral contraceptive pills and estrogen has a strong association with hepatic adenomas. Four different subgroups of adenomas have been described: Inflammatory, HNF-1α-mutated, β-catenin-mutated and unclassified. Vascular complications may include Budd-Chiari syndrome, vascular thrombosis, dilated sinusoids and peliosis.
Keywords: Budd-Chiari syndrome; HNF-1α-mutated; Hepatic adenoma; Inflammatory; Oral contraceptive pills and estrogen; Peliosis; β-Catenin-mutated and unclassified.
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