(A, C) Representative section of Apc mutant intestinal tumours analysed by single-molecule fluorescence in situ hybridisation (smFISH) for Thbs1 (pThbs1, red dots) and Lgr5 (pLgr5, green dots in A) or the YAP target Sca1 (pSca1, green dots in C). Here, CASP3 is linked to intestinal neoplasm.