%0 Journal Article %T Diffuse goitre enlargement after immunotherapy for non-small cell lung cancer. %A Fujita K %A Araki N %A Mio T %J Respirol Case Rep %V 9 %N 11 %D Nov 2021 %M 34667615 暂无%R 10.1002/rcr2.866 %X It is well known that a phenomenon called hyperprogressive disease (HPD) often occurs during immunotherapy with immune checkpoint inhibitors. In the present case, we experienced a case of HPD in a potential metastatic thyroid tumour during immunotherapy. HPD can be life-threatening depending on where it appears, so clinicians need to be careful.