Amish, Mennonite, and Hutterite
Genetic Disorder Database

Hemophagocytic lymphohistiocytosis, familial, 2

Disorder
OMIM #: #603553  (Click to access OMIM database)
Disorder: Hemophagocytic lymphohistiocytosis, familial, 2  
Also known as: FHL2, HPLH2, HLH2  
Clinical
Phenotype: fever, splenomegaly,bicytopenia, hypertriglyceridemia, hypofibrinogenemia, hyperferritinemia, elevated soluble CD25 levels, decreased or absence of natural killer cell ctivity and hemophagocytosis in bone marrow, spleen, lymph nodes or other tissues 
Seen In: Amish
Old Order Mennonite
Old Colony Mennonite
Unknown/Other Mennonite
Hutterite
Remarks:

Testing is available at LHSC.

Autosomal recessive 

Mutations
1   Old Order Mennonite, Unknown / Other Mennonite  
Gene: PRF1
Base Change: G>A , at nucleotide 1122
Amino Acid Change: trp 374 --> term
Last updated: 2022-11-05 

References
Balta G, Okur H, Unal S, Yarali N, Gunes AM, Unal S, Turker M, Guler E, Ertem M, Albayrak M, Patiroglu T, Gurgey A. (2010) Assessment of clinical and laboratory presentations of familial hemophagocytic lymphohistiocytosis patients with homozygous W374X mutation. Leuk Res Aug;34(8):1012-7.
PubMed ID: 20197201 

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