Blackwell Underground Clinical Vignettes: Pathophysiology I, Fourth Edition is your primary source for clinically relevant, case-based material essential for USMLE Step 1 review. Each Clinical Vignette simulates USMLE format, and includes classic buzzwords in history taking, physical examination, lab, imaging, and pathology. This volume, Pathophysiology I, covers pulmonary, OB/GYN, ENT, and hematology/oncology; Pathophysiology II covers the gastrointestinal system, neurology, rheumatology, and endocrinology; and Pathophysiology III covers the cardiovascular system, dermatology, the genitourinary tract, and general surgery. This revised edition contains: Carefully selected cases templated to fit the way you are tested and taught to think Valuable links to Step 1 and 2 Atlases for emphasis on photographic case studies Over 50 new cases compatible with the updated content of USMLE Step 1 Blackwell Underground Clinical Vignettes: Pathophysiology I, Fourth Edition is perfect for medical students. Physician assistants, nurse practitioners, and related health professionals will also find Underground Clinical Vignettes valuable.