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Complete response of metastatic disease in patient 1. a A 1.3-cm mass in the liver at the time of diagnosis (arrowhead). b Complete resolution of the lesion after neoadjuvant therapy with 12 weeks of paclitaxel and trastuzumab, followed by 1 year of trastuzumab monotherapy. c Left lower lobe mass (*) that progressed on multiple lines of therapy, prior to initiating trastuzumab deruxtecan. d Complete response in the lung after 1 year of trastuzumab deruxtecan.
