Differences in MUC1 expression can also be used to distinguish between type I and type II papillary renal cell carcinoma (PRCC) and as a marker for distinguishing multilocular cystic renal cell carcinoma (MCRCC) and renal cell carcinoma cystic change (RCC-CD) [86, 87]. Here, MUC1 is linked to renal cell carcinoma.