Today, Shandra Wilkinson, RMA, is working with Dr. Penningworth at Pearson Physicians Group. Dr. Penningworth has instructed Shandra to prepare examination room 4 for an I & D of a sebaceous cyst. He will be performing the I & D on Carmen DiStefano, a 32-yearold male who presented to the office with pain and discomfort surrounding the cyst.

What is an I & D, and why is it usually performed?