Familial Hemophagocytic Lymphohistiocytosis Type 4

**Semantic type:** Disease or Syndrome

**Definition:** Familial hemophagocytic lymphohistiocytosis caused by biallelic mutations in the STX11 gene.

**Synonyms:** - FHL4 - STX11-FHLH - STX11-Related Familial Hemophagocytic Lymphohistiocytosis - STX11-fHLH