PMID- 24403235 OWN - NLM STAT- MEDLINE DCOM- 20140916 LR - 20211021 IS - 2045-7634 (Electronic) IS - 2045-7634 (Print) IS - 2045-7634 (Linking) VI - 2 IP - 5 DP - 2013 Oct TI - Hormone profiling, WHO 2010 grading, and AJCC/UICC staging in pancreatic neuroendocrine tumor behavior. PG - 701-11 LID - 10.1002/cam4.96 [doi] AB - Pancreatic neuroendocrine tumors (pNETs) are the second most common pancreatic neoplasms, exhibiting a complex spectrum of clinical behaviors. To examine the clinico-pathological characteristics associated with long-term prognosis we reviewed 119 patients with pNETs treated in a tertiary referral center using the WHO 2010 grading and the American Joint Committee on Cancer/International Union Against Cancer (AJCC/UICC) staging systems, with a median follow-up of 38 months. Tumor size, immunohistochemistry (IHC) profiling and patient characteristics-determining stage were analyzed. Primary clinical outcomes were disease progression or death. The mean age at presentation was 52 years; 55% were female patients, 11% were associated with MEN1 (multiple endocrine neoplasia 1) or VHL (Von Hippel-Lindau); mean tumor diameter was 3.3 cm (standard deviation, SD) (2.92). The clinical presentation was incidental in 39% with endocrine hypersecretion syndromes in only 24% of cases. Nevertheless, endocrine hormone tissue immunoreactivity was identified in 67 (56.3%) cases. According to WHO 2010 grading, 50 (42%), 38 (31.9%), and 3 (2.5%) of tumors were low grade (G1), intermediate grade (G2), and high grade (G3), respectively. Disease progression occurred more frequently in higher WHO grades (G1: 6%, G2: 10.5%, G3: 67%, P = 0.026) and in more advanced AJCC stages (I: 2%, IV: 63%, P = 0.033). Shorter progression free survival (PFS) was noted in higher grades (G3 vs. G2; 21 vs. 144 months; P = 0.015) and in more advanced AJCC stages (stage I: 218 months, IV: 24 months, P < 0.001). Liver involvement (20 vs. 173 months, P < 0.001) or histologically positive lymph nodes (33 vs. 208 months, P < 0.001) were independently associated with shorter PFS. Conversely, tissue endocrine hormone immunoreactivity, independent of circulating levels was significantly associated with less aggressive disease. Age, gender, number of primary tumors, and heredity were not significantly associated with prognosis. Although the AJCC staging and WHO 2010 grading systems are useful in predicting disease progression, tissue endocrine hormone profiling provides additional information of potentially important prognostic value. CI - (c) 2013 The Authors. Cancer Medicine published by John Wiley & Sons Ltd. FAU - Morin, Emilie AU - Morin E AD - Department of Medicine, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada. FAU - Cheng, Sonia AU - Cheng S FAU - Mete, Ozgur AU - Mete O FAU - Serra, Stefano AU - Serra S FAU - Araujo, Paula B AU - Araujo PB FAU - Temple, Sara AU - Temple S FAU - Cleary, Sean AU - Cleary S FAU - Gallinger, Steven AU - Gallinger S FAU - Greig, Paul D AU - Greig PD FAU - McGilvray, Ian AU - McGilvray I FAU - Wei, Alice AU - Wei A FAU - Asa, Sylvia L AU - Asa SL FAU - Ezzat, Shereen AU - Ezzat S LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130806 PL - United States TA - Cancer Med JT - Cancer medicine JID - 101595310 RN - 0 (Antineoplastic Agents, Hormonal) RN - 0 (Biomarkers, Tumor) RN - 0 (Hormones) RN - RWM8CCW8GP (Octreotide) SB - IM MH - Adult MH - Aged MH - Antineoplastic Agents, Hormonal/therapeutic use MH - Biomarkers, Tumor/*metabolism MH - Disease Progression MH - Disease-Free Survival MH - Female MH - Follow-Up Studies MH - Hormones/*metabolism MH - Humans MH - Kaplan-Meier Estimate MH - Liver Neoplasms/secondary MH - Male MH - Middle Aged MH - Neoplasm Grading MH - Neoplasm Staging MH - Neuroendocrine Tumors/diagnosis/drug therapy/*pathology/secondary MH - Octreotide/therapeutic use MH - Pancreatic Neoplasms/diagnosis/drug therapy/*pathology MH - Prognosis MH - Retrospective Studies MH - Treatment Outcome PMC - PMC3892801 OTO - NOTNLM OT - Carcinoid OT - gastrinoma OT - insulinoma OT - neuroendocrine tumors OT - pNET EDAT- 2014/01/10 06:00 MHDA- 2014/09/17 06:00 PMCR- 2013/10/01 CRDT- 2014/01/10 06:00 PHST- 2013/03/15 00:00 [received] PHST- 2013/04/19 00:00 [revised] PHST- 2013/05/12 00:00 [accepted] PHST- 2014/01/10 06:00 [entrez] PHST- 2014/01/10 06:00 [pubmed] PHST- 2014/09/17 06:00 [medline] PHST- 2013/10/01 00:00 [pmc-release] AID - 10.1002/cam4.96 [doi] PST - ppublish SO - Cancer Med. 2013 Oct;2(5):701-11. doi: 10.1002/cam4.96. Epub 2013 Aug 6.