Book excerpt: In this issue of Surgical Pathology Clinics, guest editor Lauren L. Ritterhouse brings her considerable expertise to the topic of molecular pathology. - Provides in-depth, clinical reviews on molecular pathology, providing actionable insights for clinical practice. - Presents the latest information on this timely, focused topic under the leadership of experienced editors in the field; Authors synthesize and distill the latest research and practice guidelines to create these timely topic-based reviews.