Is a CLL FISH panel sufficient to aid in treatment decisions in CLL or is p53 sequence analysis also needed?   

At a minimum, patients should undergo IGHV mutation analysis as well as testing for deletion of 11q and 17p prior to treatment initiation. However, testing for a TP53 mutation is ideal. While many patients with TP53 mutations will have a concomitant deletion 17p, this is not always the case. Given t...