What is a bundle branch block Bundle branch block is a condition in which there's a delay or obstruction along the pathway that electrical impulses

What is Dupuytren's contracture Dupuytren's contracture (also called Dupuytren's disease) is a painless progressive thickening, shortening and tightening (contracture) of palmar fascia (palmar aponeurosis) beneath the skin on

What is patellofemoral pain syndrome Patellofemoral pain syndrome (often called anterior knee pain or runner's knee) is the medical term for pain felt under and

What is Osgood Schlatter disease Osgood-Schlatter disease (also called tibial tubercle apophysitis) is an inflammation of the bone, cartilage, and/or tendon at the top of the

What is hantavirus pulmonary syndrome Hantavirus Pulmonary Syndrome is a severe, sometimes fatal, respiratory infectious disease in humans caused by infection with hantaviruses (part of

What is osteochondritis dissecans Osteochondritis dissecans is a joint condition that occurs when a piece of cartilage and the thin layer of bone beneath it,

What is Eisenmenger syndrome Eisenmenger syndrome is a rare progressive heart condition that develops in some individuals with structural malformations of the heart that are

What is cystocele A cystocele, also called a prolapsed bladder or dropped bladder or anterior prolapse, is the bulging or dropping of the bladder into

What is cytomegalovirus Cytomegalovirus (CMV), a type 5 herpesvirus, is a common virus found around the world that infects people of all ages. Between 50 percent

What is oppositional defiant disorder Oppositional defiant disorder is a pattern of disobedient, hostile behavior and defiant behavior toward authority figures with frequent loss of