A Patient With Hepatocellular Carcinoma and Lung Metastasis Successfully Underwent Curative Surgery Following the Downstaging Treatment: A Case Report

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Hepatocellular carcinoma (HCC) is the most common primary liver malignancy. Hepatic resection constitutes the major curative treatment option, but a significant proportion of patients are not surgical candidates on initial evaluation. Along with the development of novel therapeutic strategies including targeted therapies and immunotherapies, a few HCCs can achieve tumor downstaging and be curatively resected. A 52-year-old man was diagnosed with HCC with portal vein invasion and extensive pulmonary and lymph node metastasis. Transarterial chemoembolization (TACE) in conjunction with donafenib and sintilimab was given. Primary tumors in the liver largely shrank with almost complete elimination of the lung metastases following treatment. The patient subsequently underwent curative surgery for HCC, and the pathological examination revealed complete necrosis of the tumor. Targeted immunotherapy was continued after surgery and no disease progression was found on the latest follow-up. Advanced HCC with distant metastasis might have an excellent response to combination therapy of TACE with tyrosine kinase-targeted inhibitors and PD-1 blocker, and achieve opportunity for curative surgery. This efficacy may be associated with the remodeling of immune microenvironment and angiogenesis. HCC is extremely heterogeneous, and the response to therapeutics varies among patients. There is a lack of useful biomarkers to predict therapeutic efficacy, which needs further studies.

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