Evidence map›Paper›PMID 30707733›Full record

ArticlePloS one2019

Differentiation of hypovascular pancreatic neuroendocrine tumors from pancreatic ductal adenocarcinoma using contrast-enhanced computed tomography.

Shuai Ren, Xiao Chen, Zhonglan Wang, Rui Zhao, Jianhua Wang, Wenjing Cui, Zhongqiu Wang

Abstract read
In one paragraph

Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Radiomics in differential diagnosis of pancreatic tumors.European journal of radiology open · 2025
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  17. Carcinoid Tumorlets Co-Existing with Chronic Pulmonary Inflammatory Processes: Imaging Findings and Histological Appearances.Medical science monitor : international medical journal of experimental and clinical research · 2020
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Shuai RenDepartment of Radiology, the Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China.
Xiao ChenDepartment of Radiology, the Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China.
Zhonglan WangDepartment of Radiology, the Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China.
Rui ZhaoDepartment of Radiology, the Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China.
Jianhua WangDepartment of Radiology, the Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China.
Wenjing CuiDepartment of Radiology, the Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China.
Zhongqiu WangDepartment of Radiology, the Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China.ORCID 0000-0003-3722-6663

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hypovascular pancreatic neuroendocrine tumors (hypo-PNETs) are often misdiagnosed as pancreatic ductal adenocarcinoma (PDAC). However, the treatment options and prognosis of PNETs and PDAC are substantially different. This retrospective study differentiated hypo-PNETs from PDAC using contrast-enhanced CT (CE-CT). Clinical data and CE-CT findings, including tumor location, size, boundary, pancreatic duct dilatation, local invasion or metastases, tumor contrast enhancement, and tumor-to-pancreas enhancement ratio, were compared between 39 PDACs and 18 hypo-PNETs. At CT imaging, hypo-PNETs showed a higher frequency of a well-defined margin and lower frequencies of pancreatic duct dilatation and local invasion or metastasis when compared with PDAC (p < 0.05 for all). The mean attenuation of hypo-PNETs at the arterial and portal venous phase was significantly higher than that of PDAC (p < 0.001, p = 0.003, respectively). Similar results were observed in tumor-to-pancreas enhancement ratio. Tumor attenuation and tumor-to-pancreas enhancement ratio at the arterial phase showed the largest area under the curve (AUC) of 0.888 and 0.812 with 83.3-88.9% of sensitivity and 61.6-77.0% of specificity. Pancreatic duct dilatation, local invasion or metastasis, and tumor attenuation at the portal venous phase also showed acceptable AUC (0.703-0.748). Thus CE-CT features, especially the enhancement degree at the arterial phases, may be useful for differentiating hypo-PNETs from PDAC using CE-CT.

Indexed as

AdultAgedArea Under CurveCarcinoma, Pancreatic DuctalDiagnosis, DifferentialFemaleHumansMaleMiddle AgedNeoplasm MetastasisNeuroendocrine TumorsPancreatic NeoplasmsRadiographic Image EnhancementROC CurveTomography, X-Ray Computed

Identifiers

PMID30707733
PMCPMC6358067

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.