It is a well-known fact that only if you are aware that a certain disease exists, are there chances that it will be diagnosed correctly when it is encountered. The purpose of this book is to remind the clinician of the existence of various conditions and the multitudinous ways they manifest themselves. Case reports are still important reminders of how diseases present in different ways that can confound the clinician.The case reports in this book aptly illustrate this. They are complied by experts from all around the globe. It is our endeavor to empower those who read this book to better understand the various manifestations of diseases and how to better diagnose, evaluate and treat these problems.