Maybe we have an obsession for cases, but when we were resident in radiology, we loved to learn especially from cases not only because they are short, exciting and fun, similar to a detective story in which the aim is to get to the bottom of the case, but also because, in the end, thats what radiologists are faced with during their daily work. The topics covered in the book represent the common and important diseases encountered in abdominal and pelvic imaging. The material presented for each case provides a thorough and comprehensive description of the disease entity, enabling the radiologist or the clinician to develop a clear concept of the entity through the different imaging modalities that are present. What is interesting in this book is one case per page. The book can be used as a means of rapid revision of a large number of cases in a short time or as test of knowledge by masking the radiological description and diagnosis and trying by using the clinical data and radiological images to describe first the pathology then propose a diagnosis.