Figure 1

CD10 and CD13 prostate cancer cell types. Positive staining is indicated by the brown chromogen deposit. Non-cancer glands are generally positive for both CD10 and CD13. In the left and middle cases the tumors consist of small crowded glands in the left half of the field. Most of the cancer glands are CD10^- and CD13⁺, although a few isolated CD10⁺ cancer glands can be seen. In the right case, a subpopulation of CD13⁺ cancer cells are present in the larger population of CD10^-/CD13^- cancer cells. This tumor shows no glandular morphology. Magnification is 20×.