Pseudocirrhosis of breast cancer metastases to the liver treated by chemotherapy

Pseudocirrhosis refers to a condition that shows changes in hepatic contour that mimic cirrhosis radiographically in the absence of the typical histopathological findings of cirrhosis. This condition has been observed in patients with cancer metastatic to the liver, both in those who have undergone prior systemic chemotherapy and those who have not. Pseudocirrhosis may cause difficulty in interpretation of the response to chemotherapy and hepatic decompression and complication of portal hypertension have a negative effect on the prognosis. We report on a case of breast cancer with liver metastases that showed cirrhotic changes during disease progression. Progression of liver metastases was confirmed by F18 fluorodeoxyglucose positron emission tomography/computed tomography (PET-CT). We also performed ultrasound-guided liver biopsy and confirmed tumor infiltration with severe desmoplastic fibrosis. This case suggests the pathogenesis of pseudocirrhosis through histopathological findings and the role of PET-CT in evaluation of the response to chemotherapy in patients with pseudocirrhosis.