This book is an essential guide for rheumatologists using ultrasound to study musculoskeletal structures and diagnose rheumatic diseases of the hand. A fundamental understanding of anatomy is key to identifying and interpreting pathological findings on imaging. This book thus offers readers a comprehensive knowledge about gross anatomy of the hand and, importantly, about comparative imaging anatomy, as depicted by ultrasound, X-ray, and MRI. This foundation allows clinicians to more easily identify abnormalities and leads to quicker diagnoses. Chapters on presentations of rheumatic diseases and pathological findings detail these abnormalities for clinicians. Authors also offer step-by-step guidelines for using the ultrasound, with comprehensive descriptions about body position, transducer position, terminology, and anatomical landmarks in different planes of the hand. This is an indispensable reference for rheumatologists and rheumatology residents using ultrasound in their practice.