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RETRACTED ARTICLE: Collecting duct carcinoma of the kidney: a clinicopathological study of five cases

Xiangyang Wang, Jianwei Hao*, Ruijin Zhou, Xiangsheng Zhang, Tianzhong Yan, Degang Ding, Lei Shan and Zhonghua Liu

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Department of Urology, Henan Provincial People’s Hospital, Zhengzhou 450003, China

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Diagnostic Pathology 2013, 8:96  doi:10.1186/1746-1596-8-96

The Publisher and Editor regretfully retract this article because the peer-review process was inappropriately influenced and compromised. As a result, the scientific integrity of the article cannot be guaranteed. A systematic and detailed investigation suggests that a third party was involved in supplying fabricated details of potential peer reviewers for a large number of manuscripts submitted to different journals. In accordance with recommendations from COPE we have retracted all affected published articles, including this one. It was not possible to determine beyond doubt that the authors of this particular article were aware of any third party attempts to manipulate peer review of their manuscript. The retraction note is available from the following link;

Published: 17 June 2013



To investigate the clinicopathological features of collecting duct carcinoma (CDC) and improve its diagnosis and treatment.


A retrospective analysis was performed with clinical data including follow-up results of five patients with CDC.


A total of 5 cases, including 4 males and 1 female, were included in this analysis with the average age 54 years (range 42 to 65). Patients mainly suffered from lumbar pain, hematuria, abdominal mass and low grade fever. Four patients underwent radical nephrectomy while another received palliative nephrectomy. Lymph node metastasis occurred in 3 cases and renal hilum fat metastasis happened to 2 other cases. Tumors was located in the renal medulla and presented invasive growth. They had a tubulopapillary architecture with the hobnail-shaped cells protruding into the glandular lumen, and were accompanied by interstitial fibrosis and dysplasia of epithelial cells in collecting ducts adjacent to the tumors. One tumor was staged at AJCC II, two at AJCC III and two at AJCC IV. Postoperative interferon immunotherapy was applied in 2 cases. Patients were followed up for 5 to 18 months and the average survival time was 10 months.


The CDC exhibits special clinicopathological features, high degree of malignancy and poor prognosis. The diagnosis depends on the histopathological examination. Early detection and early surgical treatment are still the main methods to improve the prognosis of patients with CDC.

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Renal tumor; Collecting duct carcinoma; Diagnosis; Pathology