Pulmonary Hypertension
Chapter 114 Pulmonary Hypertension Thuy D. Nguyen, Anthony S. Gemignani Definition and Epidemiology Development of pulmonary hypertension (PH) is the common end point for a number of disease processes whereby…
Preseptal and Orbital Cellulitis
Chapter 77 Preseptal and Orbital Cellulitis Nathan Blessing, James T. Banta Definition and Epidemiology Periorbital infections are classically divided anatomically into whether the findings are isolated anterior to the orbital…
Bone Tumors
Chapter 172 Bone Tumors Henry Degroot III Definition and Epidemiology The term bone tumor is broadly used and encompasses a wide variety of bone lesions. Bone tumors may be benign…
Elbow Pain
Chapter 174 Elbow Pain Denise A. Vanacore-Chase Definition and Epidemiology The elbow is a hinged joint that is a three-joint complex formed by the humerus, radius, and ulna.1 It allows…
Infectious Arthritis
Chapter 179 Infectious Arthritis Kevin D. Kerin A septic joint is a medical emergency. Definition and Epidemiology Inflammation of a joint is called arthritis and is an observable finding, whereas…
Dry Eye Syndrome
Chapter 75 Dry Eye Syndrome Scott D. Walter, James T. Banta Definition and Epidemiology Dry eye is a multifactorial disorder characterized by abnormalities in the tear film that result in…
Metabolic Bone Disease: Osteoporosis and Paget Disease of Bone
Chapter 182 Metabolic Bone Disease Osteoporosis and Paget Disease of Bone Alan Ona Malabanan Osteoporosis Definition and Epidemiology Osteoporosis is characterized by increased bone fragility and increased susceptibility to fracture….
Osteomyelitis
Chapter 185 Osteomyelitis Ruta M. Shah Definition and Epidemiology Osteomyelitis is inflammation of the bone caused by infection. It is one of the most difficult-to-treat infectious diseases. It can lead…
