OBJECTIVES:
* Establish a central lung cancer specimen repository to serve as a resource for current and future scientific studies.
* Correlate clinicopathologic information in the Southwest Oncology Group clinical data base with results of studies using the repository.
* Test new hypotheses with the specimens in the repository.
OUTLINE: Peripheral blood, sputum, and biopsy specimens are collected from patients. Tissue samples are frozen and stored in a lung cancer specimen repository for later use in correlative studies.
PROJECTED ACCRUAL: Not specified
