Fig. 2

Gastrin levels (pg/mL) over time with noted dates of relevant surgical procedures. Gastrin levels reached a level of 1925 pg/mL prior to excision of duodenal gastrinoma. Gastrin levels then peaked at 27,667 pg/mL in 2006 prior to enucleation of pancreatic lesions. In 2008, gastrin levels again rose to 19,262 pg/mL prior to near-total gastrectomy and pancreaticoduodenectomy. After this procedure, the patient was started on long-acting release octreotide. From 2008 until the most recent gastrin level obtained in 2018, gastrin level was 114 pg/mL