“…IT combined with lymphoproliferative disease and other diseases in adult patients has been reported. Diseases combined with IT have included malignant lymphoma, 36–38 cystic fibrosis, 39 HCV hepatitis, 15,20,40,41 HIV infections, 42,43 cytomegalovirus infections, 44 amyloidosis (combination of lambda amyloidosis and monoclonal lambda FGN), 45 gastric cancer, 46 diabetes mellitus, 47,48 chronic myelocytic leukemia, 49 idiopathic hypereosinophilic syndrome, 50 and familial Mediterranean fever 51 . In children, besides reports of primary IT/FGN, 52,53 there have been other reports of Down syndrome, 54 sickle‐cell anemia, 55 Charcot–Marie–Tooth disease, 56 and factor H deficiency 57 .…”