1 Chang Guk Kim, MD, Department of Radiology, Hanyang University Hospital, Seoul; Seungsam Paik, MD, PhD, Department of Pathology, Hanyang University Hospital, Seoul.
2 Yeo Ju Kim, MD, PhD, Department of Radiology, Hanyang University Hospital, Seoul.
3 Seungsam Paik, MD, PhD, Department of Pathology, Hanyang University Hospital, Seoul.
4 Sang-Cheol Bae, MD, PhD, MPH, Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Hanyang University Institute for Rheumatology Research, and Hanyang Institute of Bioscience and Biotechnology, Seoul, South Korea.
Hemophagocytic lymphohistiocytosis (HLH) is characterized by excessive immune activation.1 It involves the activation of lymphocytes and histiocytes that infiltrate various organs and release cytokines.1.