Dr. Gordon DeWald, professor emeritus in laboratory medicine and laboratory genetics at Mayo Clinic, provides an overview of his study published in the September issue of Mayo Clinic Proceedings (available at http://tinyurl.com/mcce2t), with coauthors listed below plus Anne Wiktor and Gloria Petersen, on the use of FISH (Fluorescence In Situ Hybridization) to visualize genetic abnormalities characteristic of pancreatic cancer. Mayo Clinic Proceedings: www.mayoclinicproceedings.com