KIT and neoplasm: The qRT-PCR analyses revealed that 44 of 66 (66.67%) tumours had increased circ_0069765 (4.68-fold); 60 of 65 (92.30%) tumours had increased host gene KIT mRNA (1404.20-fold) expression; 63 of 68 (92.65%) tumours had increased cir_0084097 expression (156.86-fold); 61 of 68 (89.71%) tumours had increased host gene PLAT mRNA (462.43-fold) expression; 59 of 68 (86.76%) tumours had increased circ_0079471 (118.10-fold) expression; and 62 of 66 (93.94%) tumours had increased host gene ETV1 mRNA (678.60-fold) expression.