Observational StudyAnalysis of Graft Function Following Autologous Islet Transplantation

Inclusion Criteria:

1. Patients with chronic pancreatitis and who are scheduled for TP alone or TP-AIT
2. Patients aged 18 or older
3. Patients are able and willing to attend required follow-up visits at Baylor

Exclusion Criteria:

1. Patients who are unable/unwilling to attend follow-up visits at Baylor
2. For TP-AIT subjects: Patients who have advanced stage of chronic pancreatitis. The principal investigator or co-investigators carefully review the medical charts, laboratory results and radiology department reports and determine the suitability for this study.