Secondary hemophagocytic lymphohistiocytosis due to nivolumab/ipilimumab in a renal cell cancer patient—A case report

Abstract Secondary immune‐related hemophagocytic lymphohistiocytosis is a rare but life‐threatening complication of immune checkpoint inhibitors. HLH‐2004 and HLH‐1994 guidelines originally developed for primary HLH are the only available guidelines. It has proven to have a good prognosis if diagnosed promptly with discontinuation of immunotherapy and treated with corticosteroid monotherapy.