L1CAM and renal cell carcinoma: We also evaluated L1CAM and LINC01187 expression in several rare oncocytic renal tumor subtypes that could be entertained within the differential diagnosis of HOT, including LOT, oncocytic unclassified RCC, MiTF aberration associated RCC (MiTF-RCC), ESC-RCC, ACD-RCC and SDH-B deficient RCC (Table 1, Table 2, Supplementary Table 1).