Chronic lung diseases are disorders associated with abnormalities in any of the structures involved in the process of breathing and bringing oxygen into the lungs and blood. This includes abnormalities in the airways, lungs, blood vessels in and around the lungs, and the tissue covering the lungs (pleura).

The purpose of this research study is to evaluate patients referred to the Cardiovascular and Pulmonary Branch of the National Heart, Lung, and Blood Institute (NHLBI) in order to;

1. Develop a better understanding of the causes and disease processes involved in disorders of the lungs
2. Identify patients eligible to participate in other P-CCMB research studies

The chronic lung diseases are those disorders associated with functional and/or structural derangement to the alveolar structures, airways, pulmonary blood vessels, pleura and/or mediastinum. The purpose of this project is to permit the comprehensive evaluation of patients referred to the Pulmonary Branch of the National Heart, Lung, and Blood Institute (NHLBI) in order to: (1) develop an understanding of the etiology and pathogenesis of these disorders; and (2) identify individuals who will be suitable candidates for other NHLBI protocols. Testing and procedures will only be performed when medically indicated for the purposes of making a diagnosis or obtaining information likely to be useful in the management of the subjects' disease or condition.

• INCLUSION CRITERIA:

Symptoms consistent with pulmonary disease.

May have family history of lung disease.

Patients with diseases of organs with known association with lung disease.

Ranging in age from 7 to 90 years old.

Pregnant and nursing women may participate in minimal risk procedures

EXCLUSION CRITERIA:

Persons with no clinical evidence of lung disease.

patients being screened for lung disease