Chapter 215 Ankylosing Spondylitis and Related Disorders Carey Field Ankylosing Spondylitis Definition and Epidemiology The seronegative spondyloarthropathies are a group of inflammatory arthritides sharing many clinical, radiographic, and genetic features….
Chapter 209 Hyperkalemia and Hypokalemia Joanne Sandberg-Cook Definition and Epidemiology The amount of potassium present in the average human body is approximately 50 mEq/kg. Of this, 90% is found in intracellular…
Chapter 202 Trigeminal Neuralgia Wanda J. Handel Definition and Epidemiology Trigeminal neuralgia is a common and well-defined pain disorder affecting the sensory branches of the trigeminal nerve. It is also…
Chapter 124 Myocarditis John R. Butterly Definition and Epidemiology Myocarditis is the term used to include any pathologic process in which inflammation involving the myocardium is identified. The basic definition…
Chapter 129 Cholelithiasis and Cholecystitis Meghan Glynn Definition and Epidemiology Cholelithiasis and cholecystitis are worldwide disorders that result from inflammatory, infectious, neoplastic, metabolic, and congenital conditions. Gallbladder disease affects all…
Chapter 85 Otitis Externa Jacqueline Rosenjack Burchum Definition and Epidemiology Otitis externa is a cellulitis of the external auditory canal that may extend to the auricle (pinna).1 The condition is…
Chapter 189 Amyotrophic Lateral Sclerosis Stephanie Cassone Definition and Epidemiology Amyotrophic lateral sclerosis (ALS) is the most common of the progressive motor neuron diseases. It is also often referred to…
Chapter 117 Abdominal Aortic Aneurysm Patricia Jordano Definition and Epidemiology An abdominal aortic aneurysm (AAA) is a progressive, permanent, localized dilation of the abdominal aorta with aortic diameter of 3.0 cm…
Chapter 50 Cutaneous Herpes Keith A. Deardorff, Theresa A. Bedford Definition and Epidemiology Cutaneous infections caused by the herpes simplex virus (HSV) can be of two serologic types: HSV-1, primarily…
