Table 2.

Instruments constituting the registry dedicated to patient with Castleman’s disease; the number of fields and at which phase of data collection they are referred to is also reported.

Instruments	Fields	Retrospective/Prospective phase	No. of mandatory fields
Demographics	11	Retrospective phase	4
Consents	5	Retrospective phase	2
General information about Castleman’s disease onset	7	Retrospective phase
Histopathology	10	Retrospective phase	0
Diagnosis	36	Retrospective phase	0
Castleman’s disease features up to the enrolment	229	Retrospective phase	0
Laboratory data during disease activity	49	Retrospective phase	0
Treatment strategies attempted over time	3	Retrospective phase	2
Treatments performed up to the time of the enrolment	1,160	Retrospective phase	0
Follow-up visits-the prospective phase	1,488	Prospective phase	41
Death of the patient (to open only in case of patient’s death)	4	Retrospective/prospective phase	0