BTG3 and combined pulmonary fibrosis-emphysema syndrome: There were no differences between the three groups of CPFE patients based on their immunologic profile (ANA + ANCA+, ANA + ANCA-, ANA-ANCA-) with regards to baseline functional (FEV1, FVC, DLCO, sPAP) and radiological (HRCT pattern) parameters (Table 3).