Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Japan.
Intern Med. 2023 Feb 15;62(4):539-543. doi: 10.2169/internalmedicine.9701-22. Epub 2022 Jun 21.
A 70-year-old man was diagnosed with hepatocellular carcinoma (HCC) with portal vein invasion and lung metastases, for which atezolizumab plus bevacizumab (ATZ/BEV) was initiated. After two months, computed tomography revealed tumor growth accompanied by ascites, right ventricular invasion, exacerbation of the lung metastases, and main portal vein invasion. However, continuation of ATZ/BEV caused remarkable size reductions in all lesions, finally resulting in the disappearance of the vascular invasion and lung metastases after nine cycles of treatment. The tumor growth was considered to reflect pseudoprogression, which is difficult to distinguish from hyperprogression. We herein report a remarkable HCC case of pseudoprogression on ATZ/BEV.
一位 70 岁男性被诊断患有肝细胞癌(HCC)伴门静脉侵犯和肺转移,开始使用阿替利珠单抗联合贝伐珠单抗(ATZ/BEV)治疗。两个月后,计算机断层扫描显示肿瘤生长伴有腹水、右心室侵犯、肺转移恶化和主门静脉侵犯。然而,继续使用 ATZ/BEV 导致所有病变明显缩小,最终在九个周期的治疗后血管侵犯和肺转移消失。肿瘤生长被认为是假进展,这很难与超进展区分。我们在此报告一例在 ATZ/BEV 治疗下显著的 HCC 假进展病例。