Part I: GeneralChapter 1: Epidemiology of ComplicationsChapter 2: Pre-injection PlanningChapter 3: Techniques for Imaging ComplicationsPart II: Early Onset ComplicationsChapter 4: Bruising/SwellingChapter 5: Pain/TendernessChapter 6: Vascular CompromisePart III: Delayed Onset ComplicationsChapter 7: Hypersensitivity ReactionsChapter 8: MigrationChapter 9: GranulomaChapter 10: InfectionChapter 11: Technique-Related Complications