Book excerpt: In this issue of Clinics in Laboratory Medicine, guest editor Lauren L. Ritterhouse brings her considerable expertise to the topic of molecular pathology. Experts in the field cover topics such as molecular pathology of lung cancer, gliomas, prostate cancer, and more. - Contains 14 relevant topics including clinical utilization and designing a test menu; molecular alteration in pediatric solid tumors; pan-cancer molecular biomarkers; and more. - Provides in-depth clinical reviews on molecular pathology, offering actionable insights for 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 clinically significant, topic-based reviews.