Article révisé par les pairs
Résumé : PURPOSE: Pseudocirrhosis is a radiological term used to describe rapid changes in the contour of liver invaded by metastases and treated with chemotherapy. Our primary objectives were to analyse the clinical and biological characteristics of those patients with breast cancer and to assess the prevalence of complications generally associated with decompensated cirrhosis. We have also assessed associated treatments and response. METHODS: This retrospective study included all women with metastatic breast cancer to the liver who had imaging protocols describing diffuse liver contour abnormalities during systemic treatment between 2003 and 2018 in our centre. The following were identified: neoplastic characteristics, complications presented, treatments administered and response. RESULTS: 48 patients were included. There was a trend towards an increased proportion of luminal cancers (88.2%, n=30, p=0052) when compared with our hospital cancer registry. Most patients (97.9%, n=47) had a widespread liver invasion, 58.3% (n=28) had ascites on physical examination; 90% (n=18) of ascites were classified as transudate. Nearly 23% (n=11) of patients had oesophageal varices and 6.5% (n=3) had an episode of variceal rupture. At the time of the appearance of liver contour abnormalities, the most frequently used molecules were: 5-fluorouracil (22.9%; n=11) and cisplatin (18.8%; n=9). A partial response was observed in 52.1% (n=25) of patients. CONCLUSION: This is the largest reported series of patients with pseudocirrhosis. Many patients developed complications related to portal hypertension and liver failure, similar to those observed in decompensated cirrhosis. Luminal subtypes could be over-represented. In our series, pseudocirrhosis appears to develop at the expense of extensive liver disease burden and most often under 5-fluorouracil, or its derivatives, with or without cisplatin, possibly following a response to treatment.

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