MLH1 and clear cell adenocarcinoma: Other infrequent gene mutations of clear cell carcinoma included ARID1B, ARID3A, CREBBP, CSMD3, CTNNB1, LPHN3, LRP1B, MAGEE1, MLH1, MLL3, MUC4, PIK3R1, PTEN and TP53 [41,43,46,48,49].