Fig. 1From: Why not to use punch biopsies in formalin-fixed paraffin-embedded samples of prostate cancer tissue for DNA and RNA extraction?Tissue obtained by punch biopsy. The tissue is on the FFPE blocks and is extracted by punch biopsy. The sample is sent to molecular analysis. The tissue may have malignant cells in the external part but inside, the paraffin may have benign glandular cellsBack to article page