Gastroenterology: Clinical Case-Based Board Review 2026 Real-World Patient Presentations with Step-by-Step Diagnostic Reasoning for ABIM Gastroenterology Certification This case-based review guide is designed for gastroenterology fellows, internists, and practicing clinicians preparing for ABIM Gastroenterology certification. Featuring 440+ exam-style clinical cases , the book emphasizes diagnostic reasoning, endoscopic interpretation, and evidence-based treatment decision-making across the full scope of gastrointestinal and hepatobiliary medicine. Rather than testing isolated facts, this guide trains readers to integrate clinical data systematically, recognize critical GI presentations requiring urgent intervention, and apply current management algorithms to complex gastrointestinal and hepatic cases. What's Inside: 440+ Case-Based Practice Questions — Realistic gastroenterology scenarios reflecting the clinical depth and multisystem diagnostic reasoning required on ABIM certification examinations. - Step-by-Step Clinical Explanations — Clear rationales reinforcing diagnostic logic, endoscopic decision-making, and evidence-based management principles across GI emergencies and chronic conditions. - Comprehensive Topic Coverage — Acute upper and lower GI bleeding, acute pancreatitis, acute liver failure, biliary emergencies, IBD acute complications, cirrhosis decompensation, esophageal emergencies, small bowel obstruction, acute abdominal pain syndromes, chronic diarrhea, dysphagia, weight loss evaluation, jaundice workup, upper endoscopy, colonoscopy, ERCP, EUS, capsule endoscopy, advanced therapeutic endoscopy, and nutrition management. - High-Yield Tables and Frameworks — Algorithms simplifying GI bleeding triage protocols, liver disease staging, IBD flare management, endoscopic intervention selection, and biliary obstruction workup pathways. - Current, Practice-Relevant Content — Reflects 2025–2026 updates including revised colorectal cancer screening guidelines, emerging endoscopic techniques, and updated hepatology management strategies. Why This Book Works: Case-Driven Learning — Strengthens clinical reasoning through complex, multisystem GI scenarios instead of rote memorization. - Clinically Integrated Approach — Connects diagnostic findings directly to endoscopic and therapeutic decision-making outcomes. - Exam-Focused Structure — Supports efficient, high-stakes ABIM Gastroenterology certification exam preparation. - Clear, Instructional Writing — Organized for independent study, clinical reference, and fellowship training. Ideal For: Gastroenterology fellows and trainees - Internal medicine physicians pursuing GI subspecialty certification - Practicing gastroenterologists preparing for recertification - ABIM Gastroenterology board and recertification candidates Prepare with Confidence This review reinforces high-yield gastroenterology and hepatology principles and equips readers to approach complex GI cases with clarity and confidence on exam day and in professional practice. Disclaimer: This publication is independently developed and is not affiliated with, endorsed by, or sponsored by ABIM or any certifying board or professional organization. All content is original and provided solely for educational and exam preparation purposes.