Contrast-enhanced multiphasic CT and MRI of primary hepatic pregnancy: a case report and literature review

Primary hepatic pregnancy is extremely rare and difficult to diagnose radiologically. We present a 32-year-old woman with primary hepatic pregnancy diagnosed by using multi-modality imaging techniques, including ultrasonography, computed tomography (CT), and magnetic resonance imaging (MRI), which highlights diagnostic challenges. These techniques can define tissue planes in detail and identify embryo implantation into the hepatic parenchyma, thereby allowing accurate preoperative diagnosis and preoperative planning by the surgical team. To the best of our knowledge, this study is the first in the English literature to report a case of primary hepatic pregnancy, in which diffusion-weighted and contrast-enhanced multiphasic MRI were utilized for diagnosis and evaluation.