To identify tumours with translocation of ETV1 to the androgen-regulated prostate-specific region at 14q13.3–14q21.1 we co-hybridised a TMA slice with a 3′-ETV1 FISH probe (red) and a FISH probe consisting of six BACs spanning the entire region of 14q13.3–q21.1 (green). Here, ETV1 is linked to neoplasm.