Fig. 2.

Paraffin blocks, original sections and additional sections before and after block-flipping in case no. 1. a Is the right apex. b Is the left apex. c Includes the whole mount sections of the body of the prostate. d Is the right and left base. e Includes the seminal vesicles and deferens. A1 is the paraffin block. A2 is the original H-E-stained section. A3 includes the additional sections before block-flipping. A4 refers to the additional sections after block-flipping (Block-flipping was done only for a and b). The dotted area (see also the red arrow) on the A4 slides is that of the cancer. It corresponds to the lesion of the biopsy seen in Fig. 1. The same identification procedure applies to b. Concerning c and d the paraffin blocks, the original sections and the additional sections (block-flipping was not done) are shown. For e the paraffin blocks and the original sections are shown. (Other slides contain some annotations and abbreviations to indicate additional findings, slide orientation, and section order, etc.)