Rosai-Dorfman Disease | Histiocytosis Association Rosai-Dorfman Disease is a rare disorder where there is an overproduction of non Langerhans sinus histiocytes which normally accumulate in the lymph nodes. Find out more about symptoms and treatments.

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#SHML
#Rosai-Dorfman

An LCH Dx does not rule out RDD.
Involvement in lymph nodes should trigger additional histology.

histio.org
Perhaps it’d be more helpful to post non-profit medical organizations that having existed all this time with zero government funding.
#LCH is most typically a disease of childhood, WHO & ACA qualify it as a cancer.
I was dx’d w/it in my 30’s, along with #SHML - Rossai-Dorfman disease.