Written by emergency medicine specialists in Hong Kong, this book consists of 70 real cases encountered in an emergency department. Short history, clinical pictures, ECGs, X-rays, CT scans and ultrasound images are included and clinical questions are set from the emergency medicine perspective. Detailed answers are provided with references. The book is intended for medical personnel working in emergency departments. Senior EM specialists would also find the cases and discussion refreshing and pertinent for updating their existing knowledge. Most of the cases are written according to the required standard of precision for international fellowship examinations.