Interstitial lung disease in systemic lupus erythematosus: State of the art search

Interstitial lung disease in lupus is an entity that occurs infrequently and tends to progress slowly in most cases. Despite this, the therapeutic approach for moderate to severe cases is largely unknown because most of the evidence comes from case reports, many of which predate the advent of today’s known treatments for lupus. Additionally, little progress has been made in understanding its pathophysiology and current concepts come from other connective tissue diseases such as systemic sclerosis or are grouped within the group of interstitial pneumonias with autoimmune characteristics. This, to an extent, has been an obstacle for research in this field, and to date there is no unified diagnostic and therapeutic approach. Therefore we conducted a state-of-the-art search of the best evidence available to date, in terms of diagnostic methods and emerging therapies, to offer the clinician a practical vision for a comprehensive approach.