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Preventive medicine of von Hippel-Lindau disease-associated pancreatic neuroendocrine tumors
Univ Freiburg, Germany.
IRCCS, Italy.
Univ Groningen, Netherlands.
Univ Lubeck, Germany.
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2018 (English)In: Endocrine-Related Cancer, ISSN 1351-0088, E-ISSN 1479-6821, Vol. 25, no 9, p. 783-793Article in journal (Refereed) Published
Abstract [en]

Pancreatic neuroendocrine tumors (PanNETs) are rare in von Hippel-Lindau disease (VHL) but cause serious morbidity and mortality. Management guidelines for VHL-PanNETs continue to be based on limited evidence, and survival data to guide surgical management are lacking. We established the European-American-Asian-VHL-PanNET-Registry to assess data for risks for metastases, survival and long-term outcomes to provide best management recommendations. Of 2330 VHL patients, 273 had a total of 484 PanNETs. Median age at diagnosis of PanNET was 35 years (range 10-75). Fifty-five (20%) patients had metastatic PanNETs. Metastatic PanNETs were significantly larger (median size 5 vs 2 cm; P amp;lt; 0.001) and tumor volume doubling time (TVDT) was faster (22 vs 126 months; P = 0.001). All metastatic tumors were amp;gt;= 2.8 cm. Codons 161 and 167 were hotspots for VHL germline mutations with enhanced risk for metastatic PanNETs. Multivariate prediction modeling disclosed maximum tumor diameter and TVDT as significant predictors for metastatic disease (positive and negative predictive values of 51% and 100% for diameter cut-off amp;gt;= 2.8 cm, 44% and 91% for TVDT cut-off of amp;lt;= 24 months). In 117 of 273 patients, PanNETs amp;gt; 1.5 cm in diameter were operated. Ten-year survival was significantly longer in operated vs non-operated patients, in particular for PanNETs amp;lt; 2.8 cm vs amp;gt;= 2.8 cm (94% vs 85% by 10 years; P = 0.020; 80% vs 50% at 10 years; P = 0.030). This study demonstrates that patients with PanNET approaching the cut-off diameter of 2.8 cm should be operated. Mutations in exon 3, especially of codons 161/167 are at enhanced risk for metastatic PanNETs. Survival is significantly longer in operated non-metastatic VHL-PanNETs.

Place, publisher, year, edition, pages
BIOSCIENTIFICA LTD , 2018. Vol. 25, no 9, p. 783-793
Keywords [en]
PanNET; von Hippel-Lindau disease; survival; management recommendations
National Category
Surgery
Identifiers
URN: urn:nbn:se:liu:diva-150210DOI: 10.1530/ERC-18-0100ISI: 000439565400007PubMedID: 29748190OAI: oai:DiVA.org:liu-150210DiVA, id: diva2:1241063
Available from: 2018-08-22 Created: 2018-08-22 Last updated: 2018-08-22

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Gimm, OliverKuchinskaya, Ekaterina
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Division of Surgery, Orthopedics and OncologyFaculty of Medicine and Health SciencesDepartment of Surgery in LinköpingDivision of Cell BiologyClinical genetics
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Endocrine-Related Cancer
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