Fig. 4From: Management and outcomes of pneumothorax in adult patients with Langerhans cell HistiocytosisProbability of lung function deterioration in PLCH patients during the study period Over all means deterioration of either FEV1 or FVC or both. Abbreviation definitions: PLCH, pulmonary Langerhans cell histiocytosis; FEV1, forced expiratory volume in one second; FVC, forced vital capacity.Back to article page