Research Article

p40 as a Basal Cell Marker in the Diagnosis of Prostate Glandular Proliferations: A Comparative Immunohistochemical Study with 34betaE12

Figure 5

Same case as shown in Figure 4. Complete lack of basal cells in the atypical glandular proliferation is noted on 34betaE12 immunohistochemistry. Basal cells are evident in adjacent noninfiltrative glands displaying features of intraepithelial neoplasia/PIN (×100).