Combined sarcoidosis and idiopathic pulmonary fibrosis (CSIPF): a novel disease phenotype?

we recently read with interest the case series on the novel disease entity of combined sarcoidosis and idiopathic pulmonary fibrosis (IPF/UIP) identified by Raghu et al. and defined as CSIPF (1). The association of these interstitial lung diseases (ILD) with different ethiopathogenesis and clinical course in a single patient is a real rare event, and the above description of 25 patients raises the question whether this association represents a mere coincidence or a novel phenotype consequent to a genetic undefined mutation.
Source: Respiratory Medicine - Category: Respiratory Medicine Authors: Tags: Correspondence Source Type: research