Book excerpt: It's DDx To Go The unique format of the Dermatology DDX Deck gives you a completely portable, uniquely convenient diagnostic tool to compare potential diagnoses visually, side by side, without the need to flip back and forth between different pages. Each laminated card includes full-color images and information about a particular diagnosis, as well as cross references (DDx-refs) to other potential diagnoses. Bound at one corner and small enough to fit in a pocket, this is the perfect reference for those on the front line of dermatological diagnosis