OLFM4 and neoplasm: In addition to SRSF3, OLFM4 (13q14.3) showed a prominent expression increase in tumour and metastasis of P4 (log2 FCT-NM: 7.65; log2 FCLM-NM: 7.65), with no differences between tumour and metastasis samples (log2FCLMvsT: 0).