Fig. 2From: Single punch, double biopsy a H&E staining of the two parallel biopsy cores. Red squares show tumor cells in both cores, but also benign cells (1) and mesenchymal cells (2); b H&E staining of the two parallel biopsy cores. No tumor cells are present. Benign cells (1) and mesenchymal cells (2) are equally distributed in both cores; scale bar = 500 µmBack to article page