“…Out of these, three cases presented initially with tongue metastases [ 3 , 5 ]. To complete this study, we conducted an additional literature review, presented in Table 1 , of 18 cases published from 2008 to 2017 [ 3 , 4 , 6 , 9 – 23 ]. Only 6 of the 18 reported cases of RCC tongue metastasis presented initially with tongue metastases [ 3 , 4 , 12 , 17 , 18 , 20 ].…”