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Rounded atelectasis is an unusual form of peripheral atelectasis that develops as a consequence of pleural disease. It is usually thought to be a benign process after malignancy and infection have been excluded. Pergolide is an ergot-derived dopamine agonist that has been associated with pleuropulmonary fibrosis and fibrotic cardiac valve disease. Pergolide-associated rounded atelectasis has occurred in patients with known asbestos exposure. We report a patient with no known asbestos exposure who developed rounded atelectasis and subsequent symptomatic diffuse restrictive pleural disease. Physicians should consider drugs early on in their work-up of rounded atelectasis as discontinuation of the agent may reverse the process.