Study objectives To estimate the incidence of pulmonary deterioration in adult pulmonary Langerhans cell histiocytosis To assess the impact of tobacco discontinuation Study Design Multicentric prospective cohort study Main endpoint: Pulmonary deterioration Sample size : 40 patients
Study objectives:~To estimate the incidence of pulmonary deterioration in adult pulmonary Langerhans cell histiocytosis~To assess the impact of tobacco discontinuation~Study Design Multicentric prospective cohort study~Main endpoint: Pulmonary deterioration~Sample size : 40 patients