A 28 years old woman having limited cutaneous scleroderma for the last 10 years complains of shoness of breath for last one month. Her pulmonary function tests (PFT) are a following: PFT Observed Predicted FVC 2.63 2.82 FEV1 88% 80% DLCO 5.26 16.3 Which of the following is the most probable diagnosis in this patient?
Interstitial lung disease
Interstitial lung disease
Pulmonary aery hypeension
Congestive hea failure
Bronchiectasis
Interstitial lung disease