Antitumor effect of anti-PD-L1 antibody. (IMAGE) Hokkaido University Caption Antitumor effect of anti-PD-L1 antibody. CT images of oral malignant melanoma (upper left) and its lung metastases (lower left) observed in a Pomeranian (12 years old, male). As a result of treatment with anti-PD-L1 antibody, all detectable tumors disappeared (right panels; Naoya Maekawa, et al. npj Precision Oncology. February 12, 2021). Credit Naoya Maekawa, et al. npj Precision Oncology. February 12, 2021 Usage Restrictions This image is copyrighted but may be used to report this press release if credited as instructed. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.