Interstitial pneumonia with autoimmune features is a complex and heterogeneous research classification without clear management and should be discussed on a case-by-case basis in a pluridisciplinary way. Rituximab could be used for severe lung involvement. The coronavirus crisis can hide other pathologies in such a way that a diagnosis can be overlooked.
Keywords: autoimmunity; connective tissue disease; idiopathic interstitial pneumonia; interstitial lung disease; rituximab.
© 2021 The Authors. Clinical Case Reports published by John Wiley & Sons Ltd.