This book represents a daring and rarely attempted endeavor to bridge the gap between histopathology and molecular medicine in that cutting-edge molecular findings are seamlessly integrated into the key morphological features. This volume also includes discussions of short lists of organ-based benign lesions with concerning morphological features. Presented in the differential diagnosis section, they will not only serve as useful checklists for the surgical pathologist who is seriously contemplating a diagnosis of malignancy due to the observation of some cytological or histological atypia, but also help hone the key features of each malignant atypia. provides an innovative resource on the difficult topic of well differentiated malignancies for pathology residents, fellows and for those already in clinical practice.