The patient stopped smoking 17 years ago, after a 30-pack-year history. Her sister, mother, two aunts, and two cousins had breast cancer. She is a native of Colorado, she denied recent travel, and she reported no risk factors for tuberculosis. The patient had no notable occupational or environmental exposures. She denied dyspnea, chest pain, wheezing, fevers, night sweats, fatigue, weight loss, arthralgias, and rashes.