Hemophagocytic lymphohistiocytosis (HLH)

What's Your Rare iQ?

In the US, what percentage of allogeneic transplant patients develop chronic GVHD?

Activated PI3K delta syndrome (APDS)

Rare View

60% of tuberous sclerosis cases are diagnosed in the first year. Diagnosis slows down considerably after the first year.

Measured by: prevalence

Disease	Est US Prevalence	Inheritance	Age of onset
Diffuse B-cell lymphoma	141,900 (annual incidence 18,000)
Follicular lymphoma	122,100 (annual incidence 8,900)
Essential thrombocythemia	71,000-90,000
Polycythemia vera	65,000-81,000
Immune thrombocytopenic purpura (ITP)	41,580-77,880
Buerger disease	41,500-66,000
Hereditary hemorrhagic telangiectasia	30,000-60,000
Hemophilia A	22,100-33,000
AL Amyloidosis	14,000-19,000
Von Willebrand disease (Symptomatic)	7,600-37,300