Anaphylaxis is the most serious type of allergic reaction. It often occurs rapidly after exposure to an allergen and may be life-threatening.




Asthma occurs when the main air passages of the lungs become inflamed, causing wheezing and difficulty breathing. Knowing warning signs can help you manage this chronic condition.

Asthma attack

Asthma attack: Find out what the symptoms are and how to treat an asthma attack.

Atrioventricular canal defect


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.

Carcinoid tumors

Carcinoid tumors are rare, slow-growing cancerous tumors that most often occur in the gastrointestinal tract or in the lungs.

Chronic cough

More than an annoyance, a chronic cough can significantly affect your quality of life. Find out how it's diagnosed and treated.


Cystic fibrosis

Dilated cardiomyopathy

Dust mite allergy

Dust mite allergy, an immune system reaction to inhaled dust mite "debris," causes hay fever symptoms and may cause allergy-induced asthma.

Food allergy

Food allergy symptoms can make you miserable. Unfortunately, there's no cure — but there are steps you can take to keep your symptoms in check.

Heart failure

Lung cancer

Milk allergy


Neuroblastoma most commonly affects children age 5 and younger. It's the most common form of cancer in babies.

Peanut allergy

Pectus excavatum

Penicillin allergy

Pulmonary edema

Pulmonary embolism

Respiratory syncytial virus (RSV)


Sarcoidosis starts in your lungs but can cause inflammation in any part of your body. It can last a lifetime, or disappear in a few years.

Shellfish allergy

Wegener's granulomatosis

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.

April 10, 2014