Acute-onset sarcoidosis presenting as workplace-related hyperreactive airway disease.

Bechtel et al [Am Rev Respir Dis 124:759-761, 1981] have reported a high prevalence of positive methacholine challenge tests in patients with sarcoidosis. We report a patient with sarcoidosis who was identified because of symptoms resulting from exposure to workplace irritants. The presence of hyperreactive airways was confirmed by a positive methacholine challenge.