There are approximately 1500-1800 new cases of iMCD diagnosed per year in the United States. iMCD can occur at any age, but the median age at presentation is approximately 50 years old. There is a slightly increased incidence of iMCD in women. There have been no published epidemiologic studies of Castleman<unk>  outside of the United States; however, there has been no published data demonstrating increased or decreased incidence of Castleman<unk>  in specific regions or ethnicities.
Idiopathic multicentric Castleman disease
Unicentric Castleman disease
Chronic multifocal Langerhans cell histiocytosis
Follicular lymphoma
Fibrin-associated diffuse large B-cell lymphoma
HHV-8-associated MCD
AIDS-related lymphoma
Progressive nodular histiocytoma