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Bursitis
Bursae are small, fluid-filled sacs that cushion moving tissues and help bones, tendons, muscles, and skin glide smoothly around a joint. When…
Calcium Blood Test
A calcium blood test is a routine blood test that measures the amount of calcium in a blood sample. Calcium helps keep…
Campylobacter Infection
Campylobacter infection is a common foodborne illness caused by Campylobacter bacteria, especially Campylobacter jejuni. It usually affects the intestines and can cause…
Capsular Contracture
Capsular contracture occurs when the scar-tissue capsule around a breast implant becomes unusually firm and tight. The body normally forms a capsule…
Carbuncle
A carbuncle is a connected cluster of infected boils that forms under the skin. It often appears as a red, swollen, tender…
Cardiac Amyloidosis
Cardiac amyloidosis is a condition in which abnormal amyloid proteins build up in the heart muscle. These deposits can make the heart…
Cardiac Arrhythmia
Cardiac arrhythmia, also called cardiac dysrhythmia, is an abnormal heart rhythm. The heart may beat too quickly, too slowly, or irregularly. Some…
Cardiac Sarcoidosis
Cardiac sarcoidosis is a condition in which sarcoidosis affects the heart. Inflammatory clusters called granulomas can form in heart tissue and may…
Cardiac Tamponade
Cardiac tamponade is a life-threatening condition in which fluid or blood builds up in the pericardial sac, the thin covering around the…
Cardiac Thrombosis
Cardiac thrombosis is a blood clot that forms inside the heart, also called an intracardiac thrombus. It may develop in a heart…
Cardiology
Diagnosis and treatment for heart and blood vessel conditions, from routine checks to advanced catheter-based procedures.
Cardiomegaly
Cardiomegaly is the medical term for a heart that is larger than expected. It is a finding or description, not a single…
Cardiometabolic Disorders
Cardiometabolic disorders are a group of conditions that affect the heart, blood vessels, blood sugar, blood pressure, cholesterol, or body weight. These…
Cardiomyopathy
Cardiomyopathy is a disease of the heart muscle that changes its structure or how well it works. The muscle may become enlarged,…
Cardiovascular Ischemic Disease
Cardiovascular ischemic disease occurs when the heart muscle does not receive enough blood and oxygen. It usually happens when the coronary arteries,…
Cardiovascular Surgery
Surgical treatment for heart and major blood vessel conditions, from bypass surgery to valve repair and replacement.
Carotid Angiogram
A carotid angiogram is an imaging test that shows blood flow through the carotid arteries, which carry blood from the heart toward…
Carotid Artery Stenosis
Carotid artery stenosis is narrowing in one or both carotid arteries, the main neck arteries that carry blood to the brain. It…
Carpal Tunnel Surgery
Carpal tunnel surgery, also called carpal tunnel release, creates more space for the median nerve in the wrist. During the procedure, a…
Carpal Tunnel Syndrome
Carpal tunnel syndrome occurs when the median nerve is compressed as it passes through the narrow carpal tunnel in the wrist. This…
Cartilage Restoration
Cartilage restoration is a group of treatments used to repair or replace damaged articular cartilage. Articular cartilage is the smooth, cushioning tissue…
Cat-Scratch Disease
Cat-scratch disease is an infection caused by the bacterium Bartonella henselae. People most often get it when a cat scratch or bite…
Cataract
A cataract is clouding of the eye's natural lens, the clear structure that helps focus light on the retina. This clouding can…
Cauda Equina Syndrome
Cauda equina syndrome is a rare but serious condition caused by compression or injury to the bundle of nerve roots at the…
