PMID- 10443665 OWN - NLM STAT- MEDLINE DCOM- 19990819 LR - 20070417 IS - 0021-972X (Print) IS - 0021-972X (Linking) VI - 84 IP - 8 DP - 1999 Aug TI - Plasma chromogranin A in patients with multiple endocrine neoplasia type 1. PG - 2712-7 AB - Plasma chromogranin A (CgA) has been claimed to be a sensitive marker for neuroendocrine tumors, but its role in the early diagnosis of multiple endocrine neoplasia type 1 (MEN 1) pancreatic endocrine tumors has not been evaluated. We measured CgA in 36 patients with MEN 1, of whom 9 lacked pancreatic involvement, 20 had biochemical evidence of pancreatic endocrine tumors, and 7 displayed radiologically detectable pancreatic tumors. CgA was also analyzed in 25 patients with sporadic pancreatic endocrine tumors, 39 subjects with inflammatory bowel disease, 7 patients harboring nonendocrine pancreatic disease, and 19 healthy controls. Four of 9 of the MEN 1 patients without pancreatic involvement had elevated CgA. Furthermore, 60% with biochemically unequivocal tumors and all with a radiologically visible tumor showed elevations. All 25 patients with sporadic pancreatic endocrine tumor had increased CgA, as had 28% of patients with inflammatory bowel disease and 57% with nonendocrine pancreatic disease. Mean day to day CgA variation was 29% (range, 0-113%) in the neuroendocrine tumor patients and 21.0% (range, 0.0-47%, within reference range) among healthy controls. In summary, nonendocrine diseases may cause elevation of CgA, and its spontaneous variation can be considerable. Plasma chromogranin A is the most sensitive of the basal markers for neuroendocrine tumors, but cannot replace other established measures when screening for early pancreatic involvement in MEN 1. FAU - Granberg, D AU - Granberg D AD - Department of Medical Sciences, University Hospital, Uppsala, Sweden. FAU - Stridsberg, M AU - Stridsberg M FAU - Seensalu, R AU - Seensalu R FAU - Eriksson, B AU - Eriksson B FAU - Lundqvist, G AU - Lundqvist G FAU - Oberg, K AU - Oberg K FAU - Skogseid, B AU - Skogseid B LA - eng PT - Journal Article PL - United States TA - J Clin Endocrinol Metab JT - The Journal of clinical endocrinology and metabolism JID - 0375362 RN - 0 (CHGA protein, human) RN - 0 (Chromogranin A) RN - 0 (Chromogranins) SB - IM MH - Adult MH - Aged MH - Chromogranin A MH - Chromogranins/*blood MH - Female MH - Humans MH - Inflammatory Bowel Diseases/blood MH - Male MH - Middle Aged MH - Multiple Endocrine Neoplasia Type 1/*blood MH - Pancreatic Neoplasms/*blood MH - Pancreatitis/blood EDAT- 1999/08/12 00:00 MHDA- 1999/08/12 00:01 CRDT- 1999/08/12 00:00 PHST- 1999/08/12 00:00 [pubmed] PHST- 1999/08/12 00:01 [medline] PHST- 1999/08/12 00:00 [entrez] AID - 10.1210/jcem.84.8.5938 [doi] PST - ppublish SO - J Clin Endocrinol Metab. 1999 Aug;84(8):2712-7. doi: 10.1210/jcem.84.8.5938.