Coal worker's pneumoconiosis: A lung disease caused by breathing in coal dust. The condition is generally associated with employees in the coal industry. Symptoms usually resolve when exposure to coal dust stops.
Ebstein's anomaly: A congenital heart defect where the tricuspid valve is deformed. The tricuspid valve in the heart normally has three flaps that control blood flow but in Ebstein's anomaly, one of the flaps remains open instead of closing and allows blood to leak through.
Hantavirus: A genus of viruses from the family Bunyaviridae
Hypoxemia: low oxygen levels in the arterial blood in the body
Pulmonary Alveolar Proteinosis: A rare chronic lung condition where accumulation of protein or phospholipids material in the lung air sacs prevent the lungs from effectively clearing any inhaled particles such as sawdust. The condition may disappear, remain stable or progress. Chronic forms are fatal in 25% of cases.
Pulmonary arteriovenous malformation: A rare malformation where there is an abnormal opening between a lung artery and a lung vein which causes some blood to pass through the lungs without being oxygenated.
Pulmonary hypertension: Pulmonary hypertension refers to high blood pressure in the blood vessels that carry blood to the lungs. Blood pressure in other parts of the body is normal or sometimes even low. The condition may be caused by such things as lung conditions (e.g. emphysema, chronic bronchitis), heart conditions (e.g. congestive heart failure, birth defects involving heart), AIDS or medications such as fenfluramine (a diet drug). Sometimes it occurs for no apparent reason and is called primary pulmonary hypertension.
Pulmonary valve stenosis: Often a congenital defect but may be caused by such things as rheumatic fever or bacterial endocarditis. Severity depends on the degree of narrowing of the pulmonary valve.
Transposition of great arteries: A congenital malformation where the aorta and pulmonary artery are transposed which causes oxygenated blood from the lungs to be sent back to the lungs and de-oxygenated blood to be sent to body tissues. Often there is some other defect such as an opening in the heart chambers which allows mixing of the blood and hence survival is possible for a short while at least.