Evidence map›Paper›PMID 33676411›Full record

ReviewBMC medical imaging2021

Imaging analysis of 13 rare cases of renal collecting (Bellini) duct carcinoma in northern China: a case series and literature review.

Zhehao Lyu, Lili Liu, Huimin Li, Haibo Wang, Qi Liu, Tingting Chen, Meiling Xu, Lin Tian, Peng Fu

Open access · goldAbstract readCase ReportsReview
In one paragraph

Review in BMC medical imaging, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.5field-weighted citation impact, top 18% of its field
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

9 citing papers in PubMed, 12 citations in OpenAlex.

  1. Metabolic parameters analysis ofAmerican journal of nuclear medicine and molecular imaging · 2025
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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

9 authors at 2 institutions in 1 country.

Zhehao Lyu *Department of Radiology, The First Affiliated Hospital of Harbin Medical University, N0.23 Post Street, Harbin, 150001, Heilongjiang, People's Republic of China.
Lili Liu *Department of PET/CT, The Second Affiliated Hospital of Harbin Medical University, No.246 Xuefu Road, Harbin, 150086, Heilongjiang, People's Republic of China.
Huimin LiDepartment of Nuclear Medicine, Inner Mongolia Autonomous Region People's Hospital, No.20 Zhaowuda Road, Hohhot, 010017, People's Republic of China.
Haibo WangDepartment of CT, The Second Affiliated Hospital of Harbin Medical University, No.246 Xuefu Road, Harbin, 150086, Heilongjiang, People's Republic of China.
Qi LiuDepartment of Pathology, The First Affiliated Hospital of Harbin Medical University, Postal street No.23, Harbin, 150001, Heilongjiang Province, People's Republic of China.
Tingting ChenDepartment of CT, The Second Affiliated Hospital of Harbin Medical University, No.246 Xuefu Road, Harbin, 150086, Heilongjiang, People's Republic of China.
Meiling XuDepartment of CT, The Second Affiliated Hospital of Harbin Medical University, No.246 Xuefu Road, Harbin, 150086, Heilongjiang, People's Republic of China.
Lin TianDepartment of Pathology, The First Affiliated Hospital of Harbin Medical University, Postal street No.23, Harbin, 150001, Heilongjiang Province, People's Republic of China. tianlin6225108@163.com.
Peng FuDepartment of Nuclear Medicine, The First Affiliated Hospital of Harbin Medical University, Postal street No.23, Harbin, 150001, Heilongjiang, People's Republic of China. fupeng0451@163.com.ORCID 0000-0002-9860-9150
Harbin Medical University · CNInner Mongolia People's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCollecting (Bellini) duct carcinoma (CDC) is a highly malignant and rare kidney tumor. We report our 12-year experience with CDC and the results of a retrospective analysis of patients and tumor characteristics, clinical manifestations, and imaging features by computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography (PET)/CT.

methodsRetrospective examination of tumors between January 2007 and December 2019 identified 13 cases of CDC from three medical centers in northern China. All 13 patients underwent CT scan, among which eight underwent dynamic enhanced CT scan, two underwent PET/CT scan, and one underwent magnetic resonance cholangiopancreatography (MRCP) examination. The lesions were divided into nephritis type and mass type according to the morphology of the tumors.

resultsThe study group included ten men and three women with an average age of 64.23 ± 10.74 years. The clinical manifestations were gross hematuria, flank pain, and waist discomfort. The mean tumor size was 8.48 ± 2.48 cm. Of the 13 cases, six (46.2%) were cortical-medullary involved type and seven (53.8%) were cortex-medullary-pelvis involved type. Eleven (84.6%) cases were nephritis type and two (15.4%) were mass type. The lesions appeared solid or complex solid and cystic on CT and MRI. The parenchymal area of the tumors showed isodensity or slightly higher density on unenhanced CT scan in the 13 cases. PET/CT in two cases showed increased radioactivity intake. Evidence of intra-abdominal metastatic disease was present on CT in nine (69.2%) cases.

conclusionsThe imaging characteristics of CDC differ from those of other renal cell carcinomas. In renal tumors located in the junction zone of the renal cortex and medulla that show unclear borders, slight enhancement, and metastases in the early stage, a diagnosis of CDC needs to be considered. PET/CT provides crucial information for the diagnosis of CDC, as well as for designing treatment strategies including surgery.

Indexed as

AgedCarcinoma, Renal CellChinaFemaleHumansKidney NeoplasmsMagnetic Resonance ImagingMaleMiddle AgedPositron Emission Tomography Computed TomographyRetrospective StudiesTomography, X-Ray ComputedCollecting (Bellini) duct carcinomaKidney neoplasmsPositron emission tomography computed tomographyTomography scannersX-ray computed

Identifiers

PMID33676411
PMCPMC7937320
OpenAlexW3118583452

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

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.