UCD has no known causes or risk factors. Cases of<unk><unk>  running in families have been reported; however, no causative genetic variants have been identified
Unicentric Castleman disease
Idiopathic multicentric Castleman disease
Follicular lymphoma
Follicular dendritic cell sarcoma
Progressive nodular histiocytoma
Thymic carcinoma
Marginal zone B-cell lymphoma
Progressive nodular histiocytosis