Images of Analysis of Prostate Tissue Samples (image) Purdue University Share Print E-Mail Caption These are images from the desorption electrospray ionization mass spectrometry analysis of prostate tissue samples are shown next to stained slides of the same samples. The images show that cholesterol sulfate is present in cancerous tissue and precancerous legions called high grade prostatic intraepithelial neoplasia, or PIN. A Purdue University-led research team discovered that cholesterol sulfate is a potential marker for prostate cancer. Credit Photo courtesy of Demian Ifa/Purdue Center for Analytical Instrumentation Development Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.