Pathologic analysis of the prostate cell line generated from patient no. 18. (A) Highly differentiated adenocarcinoma cells; Papanicolau staining. (B) Anti-PSA staining. Images were acquired with a BX51 microscope (Olympus, Tokyo, Japan) with a 600×/0.80 NA objective, a DP70 digital camera (Olympus), and Olympus DP70 Windows XP–compatible acquisition software.