Shrinking lung syndrome in autoimmune inflammatory diseases:A case series and review of literature

摘要

Dear editor,Shrinking lung syndrome(SLS),a rare complication of autoimmune inflammatory diseases,is mainly associated with systemic lupus erythematosus(SLE),with an occurrence in 1%-2%of cases.^([1])It is characterized by restrictive defects on pulmonary function tests(PFTs)associated with reduced lung volume.SLS has also been reported in cases of primary Sjogren syndrome(pSS),^([2,3])scleroderma,^([4])rheumatoid arthritis,^([5])mixed connective tissue disease,⑹and undifferentiated connective tissue disease.Herein,we present three case reports of SLS,including two patients with SLE and one patient with adultonset StilFs disease(AOSD)(Table 1).