KRT5 and basal cell carcinoma: Of note, both AR+/K8+ adenocarcinoma and p63+/K5+ squamous‐like basal cell carcinoma were observed within a same section of ptenΔ/Δp53Δ/Δ ODT (Supplemental Figure 2C), in consistent with the primary tumour from ptenΔ/Δp53Δ/Δ GEMMs.