Development of Bullous Disease during Treatment of Pulmonary Marginal Zone B-Cell Lymphoma

Figure 2

Serial pulmonary function tests from 2007 to 2010 show stable airflow parameters with gradual increase in total lung capacity and residual volume indicating air trapping. Diffusing capacity also progressively decreased consistent with a reduction in gas exchange units as seen in bullous emphysema. Forced expiratory volume at 1 sec (FEV1), forced vital capacity (FVC), total lung capacity (TLC), and residual volume (RV) are expressed in liters (L). Diffusing capacity (DLCO) is expressed as percent (%) of predicted.