Author(s): D Slim, H Gunawardena, JM Calvert, RS Daly, MJ Plummeridge, AR MedfordJournal Issue: Volume 48: Issue 2: 2018 Format Abstract IgG4-related disease is an immune-mediated fibro-inflammatory disease, characterised by distinct pathological features. An increasing number of clinical phenotypes are described, from single-organ disease to a multisystem disorder, which can present to a variety of different specialities. Recognition is key; its protean manifestations can mimic other inflammatory diseases, infection and malignancy. Here, we present three cases to highlight the importance of being familiar with this condition in its various forms PDF https://www.rcpe.ac.uk/sites/default/files/jrcpe_48_2_medford.pdf Journal Keywords: aortitisautoimmuneIgG4-related diseaseMOLPSpulmonary disease