In-depth

Acute sinusitis

Allergies

Aortic aneurysm

Asbestosis

Ascariasis

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

Chronic sinusitis

Churg-strauss syndrome

Common cold

Common cold in babies

COPD

Croup

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

Granulomatosis with polyangiitis

Group B strep disease

Hantavirus pulmonary syndrome

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

Lung cancer

Measles

Mesothelioma

Milk allergy

Mitral valve regurgitation

Mitral valve stenosis

Nonallergic rhinitis

Non-Hodgkin's lymphoma

Pectus excavatum

Pericardial effusion

Pericarditis

Pet allergy

Pleurisy

Pneumonia

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

Q fever

Recurrent breast cancer

Respiratory syncytial virus (RSV)

Roseola

Sarcoidosis

Severe acute respiratory syndrome (SARS)

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)

Thoracic aortic aneurysm

Throat cancer

Tuberculosis

Tuberous sclerosis


Tularemia

Valley fever

Whipple's disease

Whooping cough

April 26, 2016