Ontology type: schema:ScholarlyArticle Open Access: True
2019-02-22
AUTHORSAndreas Selberherr, Oskar Koperek, Philipp Riss, Christian Scheuba, Martin B. Niederle, Reto Kaderli, Aurel Perren, Bruno Niederle
ABSTRACTBackgroundPatients with multiple endocrine neoplasia type 1 (MEN-1) develop multiple pancreatic neuroendocrine neoplasias (PNENs). Size at diagnosis and growth during follow-up are crucial parameters. According to the WHO 2017, grading is another important parameter. The impact of grading compared to size (WHO 2000) on the clinical course needs to be evaluated.MethodsSixty PNENs of six patients with MEN-1 were retrospectively evaluated.ResultsFifty-one tumors with a diameter of < 20 mm were graded as G1. Two of 9 tumors with diameters of ≥20 mm were graded as G2. Tumor size of ≥20 mm correlated significantly with higher proliferation (p = 0.000617). Lymph node metastases were documented in two patients with a total of 19 tumors. In one patient, all 13 tumors (diameter: 0.4 to 100 mm) were classified as G1. However, metastases were documented in 9/29 lymph nodes. In the other patient, 5 tumors (3.5 to 20 mm) were classified as G1. The sixth tumor (30 mm) was classified as G2 (Ki-67: 8%). Metastases were revealed in 2/20 lymph nodes.ConclusionsTumor size of ≥20 mm seems to correlate with more aggressive MEN-1 related pancreatic disease, regardless of individual proliferation. Tumors ≥20 mm and tumors graded as G2 should be treated surgically regardless of their size. More... »
PAGES54
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DOIhttp://dx.doi.org/10.1186/s13023-019-1034-4
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