Osteoarthritis
Chapter 184 Osteoarthritis Joanne Sandberg-Cook Definition and Epidemiology Osteoarthritis (OA) is a progressive degenerative joint process. It involves degeneration of the articular (hyaline) cartilage layer on the ends of bones…
Sarcoidosis
Chapter 115 Sarcoidosis Joanne Sandberg-Cook Definition and Epidemiology Sarcoidosis is a multisystem, inflammatory, granulomatous disease of unknown origin that commonly affects young and middle-aged adults. It involves the lungs and…
Pinguecula and Pterygium
Chapter 78 Pinguecula and Pterygium Eric D. Hansen, James T. Banta Definition and Epidemiology Pinguecula and pterygium are two of the most common ocular surface abnormalities with which patients visit…
Hemoptysis
Chapter 108 Hemoptysis Natalie Nicole Carrier Definition and Epidemiology Hemoptysis refers to the expectoration of blood from the lung parenchyma or airways. It can range from a small amount of…
Unplanned Pregnancy
Chapter 169 Unplanned Pregnancy Cara Cohen Definition and Epidemiology The term unplanned pregnancy is defined as a pregnancy that is undesired at the time of conception or that is mistimed…
Sexual Dysfunction (Female)
Chapter 168 Sexual Dysfunction (Female) Sheila Ann Medina Definition and Epidemiology Sexual health plays an integral role in overall health, yet it is often overlooked and undertreated. Sexual dysfunction is…
Pelvic Inflammatory Disease
Chapter 167 Pelvic Inflammatory Disease Sheila Ann Medina Definition and Epidemiology Pelvic inflammatory disease (PID) refers to a spectrum of inflammatory disorders of the upper genital tract in women. It…
