Systemic sclerosis (SS) in its final stages often produces a restrictive lung disease similar to idiopathic pulmonary fibrosis.
Further Reading
Systemic sclerosis/scleroderma: A treatable multisystem disease. Am Fam Physician 2008;78(8):961-968.
Interstitial lung disease associated with systemic sclerosis and idiopathic pulmonary fibrosis: How similar and distinct? Arthritis Rheumatol 2014;66(8):1967-1978.