Rheumatoid arthritis presenting by combined pulmonary fibrosis and emphysema with clubbing and pulmonary hypertension: A rare case report

Key Clinical Message A 60‐year‐old male smoker came with dyspnea. A rare condition known as combined pulmonary fibrosis and emphysema (CPFE) was observed on a chest CT scan. Decreased DLCO in combination with normal FVC can help diagnose CPFE. Concomitant connective tissue diseases, including rheumatoid arthritis, should be checked in CPFE patients.