An abdominal aortic aneurysm is a dangerous condition in which a part of your body's main artery (aorta) is enlarged and in danger of rupturing.
Angina is a common type of chest pain caused by coronary artery disease. Unstable angina can be a warning sign of a heart attack.
Anthrax is a deadly bacterial illness that normally affects animals. But in rare instances, humans can contract the disease.
In aortic valve regurgitation, the aortic valve doesn't close tightly, causing blood to leak back into your heart.
In aortic valve stenosis, the aortic valve narrows, blocking blood flow. The aortic valve connects your heart to the aorta, your body's main artery.
Acute respiratory distress syndrome (ARDS) is a sudden and serious lung failure that develops in people who are critically ill or have major injuries.
Asbestosis is a lung disease resulting from prolonged exposure to asbestos, a product once commonly used in the building and manufacturing industries.
Bladder cancer is often diagnosed early — when it's most treatable. But even with successful treatment, bladder cancer survivors need follow-up tests for years to come.
Breast cancer is the disease that many women fear most. But early detection and lifestyle changes may reduce your risk.
Broken heart syndrome, also called stress cardiomyopathy, mimics a heart attack. Discover how stress could trigger this puzzling condition.
Bronchiolitis is an infection of the lungs' airways that starts out like a cold but progresses to coughing and wheezing. It's common in infants.
Bronchitis often develops after a cold. Learn how to prevent this potentially serious lung infection.
Burns — Comprehensive overview covers symptoms, treatments and self-care tips. Includes burn pictures.
Cardiogenic shock is a life-threatening complication usually of a heart attack. Cardiogenic shock treatments can be effective, but must be provided immediately.
Cardiomyopathy is a heart muscle disease. Treatment options depend on what type of cardiomyopathy you have.
Chest pain can be frightening, but it doesn't always indicate a heart attack.
More than an annoyance, a chronic cough can significantly affect your quality of life. Find out how it's diagnosed and treated.
Coarctation of the aorta is a cardiovascular defect resulting in a narrowing of the aorta, the blood vessel that delivers oxygen-rich blood to your body.
Children who have a congenital heart defect have a structural flaw in the heart. Congenital heart defects in children are rare, but often treatable.
Even if your congenital heart disease was treated during childhood, be sure to take care of your condition as an adult.
Diabetic ketoacidosis is a serious diabetes complication. Learn the warning signs — and know when to seek emergency care.
Dilated cardiomyopathy is a disease of the heart in which the heart's main pumping chamber becomes enlarged and doesn't pump blood efficiently.
Dressler's syndrome is a complication of a heart attack, heart surgery or other traumatic injury to the heart.
Ebstein's anomaly is a rare heart defect. Some people may not have any symptoms, but others may need treatment, including surgery.
Eisenmenger syndrome, a complication of congenital heart defects, can be life-threatening if not properly treated. Find out more.
Tobacco smoke causes most cases of emphysema. Although quitting smoking can't reverse the damage, it can help keep this serious lung disease from becoming worse.
Endocarditis is an infection of the heart's inner lining. Find out who's at risk.
Endometrial cancer is one of the most common cancers in women. If detected early, this cancer is often successfully treated.
Enlarged heart is often a sign of a serious heart condition. Find out causes and treatments for enlarged heart.
Epiglottitis occurs when the small "lid" above your windpipe swells, blocking the flow of air into your lungs. Emergency care can prevent life-threatening complications.
Although melanoma is commonly a type of skin cancer, it can also occur in your eye. Eye exams can often detect this rare cancer.
Gynecomastia, enlarged breasts in males, is a common problem. Find out about treatments and how to cope.
A heart attack is an injury to heart muscle caused by reduced blood supply. Heart attack symptoms and treatments are discussed here.
Heart disease, usually thought of as blockages in the arteries that can cause a heart attack, can describe any medical condition affecting your heart.
Heart failure means your heart can't efficiently pump blood throughout your body. Medications, and sometimes devices or surgery, can help you manage this condition.
This whooshing sound in your heart is usually harmless, but in some cases heart murmurs can alert your doctor to specific heart conditions.
Heart palpitations are skipped, fluttering or racing heartbeats that aren't usually a symptom of a serious heart problem. Discover the causes and symptoms of this condition.
Caused by contractions of your diaphragm, hiccups are usually harmless. But rarely, hiccups may signal an underlying medical condition that requires treatment.
Horner syndrome occurs when certain nerves that travel from your brain to your eyes and face are damaged.
Hunter syndrome, a rare metabolic disorder, occurs when the body can't break down certain complex sugars. Complications occur as these sugars accumulate in the body.
Hypercalcemia is a higher than normal calcium level in your blood. The most common causes are an overactive parathyroid gland and certain cancers.
Whether it affects a small or large area of your body, itchy skin can be uncomfortable and persistent. Here's how to stop the itch.
Legionnaires' disease, a severe form of pneumonia, is caused by bacteria that can live in water in air conditioning systems, showers and spas.
The risk of liver cancer may be reduced by protecting yourself from serious liver diseases such as cirrhosis and hepatitis B and C.
Merkel cell carcinoma is a rare, aggressive skin cancer. Chronic sun exposure or a weak immune system may increase your risk of developing it.
Mesothelioma is a type of cancer closely linked to asbestos exposure. Find out the signs and symptoms of malignant mesothelioma and how to protect yourself.
Mitral valve prolapse occurs when the valve separating two of your heart's chambers malfunctions. The disorder usually isn't serious and often doesn't require surgical treatment.
Mitral valve regurgitation occurs when blood flows backward in your heart because the mitral valve closes improperly.
In mitral valve stenosis, the mitral valve is narrowed, obstructing blood flow between the chambers on the left side of the heart.
Myocarditis is a disease in which the heart muscle becomes inflamed and swollen, often as the result of an infection.
Patent ductus arteriosus (PDA) is a persistent, abnormal opening between the aorta and pulmonary artery. If it doesn't resolve on its own, it's readily treated.
Pectus excavatum — Comprehensive overview covers symptoms, complications of this deformity of the chest.
Pericardial effusion, the accumulation of excess fluid in the sac-like structure around the heart, can decrease heart function and can be life-threatening.
Pleurisy is the painful inflammation of the membranes that surround your lungs. The cause can be one of a number of underlying conditions.
There are at least 50 kinds of pneumonia — a serious lung infection that takes the lives of more than 60,000 Americans every year.
Pneumonitis is a general term for lung inflammation. It can cause difficulty breathing, often accompanied by a cough.
A pneumothorax, which is a partial or complete collapse of a lung, can result from a chest injury, lung disease or certain medical procedures.
Pulmonary edema occurs when air sacs in the lungs fill with fluid. It's often a life-threatening emergency.
Pulmonary embolism occurs when one or more arteries in your lungs become blocked. Surgery, cancer, family history and long airplane trips may place you at risk.
Pulmonary fibrosis results from scar tissue that forms in your lungs. This affects your ability to breathe and obtain enough oxygen.
High blood pressure affecting only the arteries in your lungs is known as pulmonary hypertension. Discover the symptoms, risk factors and treatment for this condition.
Q fever is a rare bacterial infection causing flu-like symptoms and sometimes harmful consequences. Most at risk are those who work with farm animals.
Recurrent breast cancer — Comprehensive overview covers symptoms, diagnosis and treatment for breast cancer recurrence.
Respiratory syncytial virus (RSV) infects most children by age 2. Signs and symptoms of the virus typically mimic a cold, but it can be serious.
Sudden cardiac arrest is a medical emergency. Rapid treatment improves your chances of survival.
Swollen lymph nodes usually indicate an infection, particularly in children. However, there are many causes, ranging from the common cold to cancer.
Tetralogy of Fallot, a cause of "blue baby" syndrome, is a congenital heart condition resulting in oxygen-poor blood leaving the heart and entering the body.
An often silent killer, a thoracic aortic aneurysm may cause no symptoms until it ruptures, causing life-threatening bleeding.
Transposition of the great arteries is a congenital heart defect in which the placement of the aorta and the pulmonary artery is switched.
Tuberculosis (TB) is making an alarming comeback. You're especially at risk if you have a weakened immune system.
Ventricular fibrillation is a life-threatening heart rhythm disturbance that requires immediate treatment. Find out more.
A ventricular septal defect (VSD) is an abnormal opening between the heart's lower chambers. Untreated, this congenital defect may cause heart failure and pulmonary hypertension.
Wegener's granulomatosis is an uncommon disease that causes blood vessel inflammation that can damage lungs, kidneys and other organs. Untreated, it can be fatal.
Whooping cough is a serious lung infection that's especially dangerous in young infants.
Wilms' tumor is a rare kidney cancer that primarily affects children.
May. 21, 2011
- Mettler FA. Chest. In: Mettler FA. Essentials of Radiology. 2nd ed. Philadelphia, Pa.: Saunders Elsevier; 2005. http://www.mdconsult.com/books/about.do?about=true&eid=4-u1.0-B0-7216-0527-3..50006-8&isbn=0-7216-0527-3&uniqId=239558037-3. Accessed April 14, 2011.
- Chest X-ray (chest radiography). Radiological Society of North America. http://www.radiologyinfo.org/en/info.cfm?PG=chestrad. Accessed April 19, 2011.
- Chiles C, et al. Radiology of the chest. In: Chen MY, et al. Basic Radiology. 2nd ed. New York, N.Y.: The McGraw-Hill Companies; 2011. http://www.accessmedicine.com/content.aspx?aID=6668687. Accessed April 14, 2011.
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