RIP, 太年轻了。第一次知道噬血细胞综合征,英文是 haemophagocytic syndrome or
Hemophagocytic lymphohistiocytosis. There are inherited and non-inherited (acquired) causes of HLH.
https://en.wikipedia.org/wiki/Hemophagocytic_lymphohistiocytosis
https://en.wikipedia.org/wiki/Hemophagocytic_lymphohistiocytosis