In-depth

Allergies

Aortic aneurysm

Ascariasis

Asthma attack

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

Atelectasis

Barrett's esophagus

Bile reflux

Bird flu (avian influenza)

Bronchitis

Bronchitis often develops after a cold. Learn how to prevent this potentially serious lung infection.

Cancer

Castleman disease

Churg-Strauss syndrome

Churg-Strauss syndrome is a rare disorder marked by blood vessel inflammation that affects organs throughout the body. Asthma is the most common sign.

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.

Dysphagia

Ebola virus and Marburg virus

Egg allergy

Ehrlichiosis

Enlarged heart

Enlarged heart is often a sign of a serious heart condition. Find out causes and treatments for enlarged heart.

Esophageal cancer

Reduce your risk of esophageal cancer by eating more fruits and vegetables.

Esophagitis

GERD

Goiter

Goiter is an enlargement of the thyroid gland due to a variety of causes. The condition can cause difficulty swallowing or breathing.

Hantavirus pulmonary syndrome

Hantavirus pulmonary syndrome is initiated by a rodent-carried virus that infects the lung tissues, bringing on flu-like symptoms, respiratory problems and even death.

Heart disease

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

Heart murmurs

Histoplasmosis

HIV/AIDS

Hodgkin's lymphoma

Influenza (flu)

Laryngitis

Legionnaires' disease

Legionnaires' disease, a severe form of pneumonia, is caused by bacteria that can live in water in air conditioning systems, showers and spas.

Lung cancer

Measles

Mesothelioma

Milk allergy

Mitral valve stenosis

Non-Hodgkin's lymphoma

Pectus excavatum

Pericarditis

Pleurisy

Pleurisy is the painful inflammation of the membranes that surround your lungs. The cause can be one of a number of underlying conditions.

Pneumonitis

Pneumonitis is a general term for lung inflammation. It can cause difficulty breathing, often accompanied by a cough.

Pulmonary edema

Pulmonary embolism

Pulmonary fibrosis

Pulmonary fibrosis results from scar tissue that forms in your lungs. This affects your ability to breathe and obtain enough oxygen.

Q fever

Recurrent breast cancer

Respiratory syncytial virus (RSV)

Roseola

Severe acute respiratory syndrome (SARS)

Severe acute respiratory syndrome (SARS) has sickened people worldwide. Although effective treatments aren't yet available, common-sense precautions may help you avoid infection.

Sinus headaches

Sjogren's syndrome

Spinal cord injury

Stevens-Johnson syndrome

Stevens-Johnson syndrome is a disorder of the skin and mucous membranes. Often, this severe adverse reaction is caused by medication or an infection.

Swine flu (H1N1 flu)

Throat cancer

Tuberous sclerosis


Tularemia

Valley fever

Whipple's disease

Whooping cough

April 26, 2016