ArticleCanadian Urological Association journal = Journal de l'Association des urologues du Canada
Papillary renal cell carcinoma embedded in an oncocytoma: Case report of a rare combined tumour of the kidney.
Article in Canadian Urological Association journal = Journal de l'Association des urologues du Canada. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 20 citations in OpenAlex.
- Article
- Oncocytoma with a vascular extension, associated with a papillary carcinoma: A case report.Urology case reports · 2023Article
- Acute pyelonephritis revealing a rare renal collision tumor of papillary and chromophobe cell carcinoma with sarcomatoid features.Oxford medical case reports · 2022Article
- Open partial nephrectomy for a collision renal cell carcinoma in a transplant kidney: A case report.Urology case reports · 2020Article
- Collision tumors of the lung: A case report of urothelial carcinoma metastasizing to renal cell carcinoma with heterotopic ossification.Respiratory medicine case reports · 2020Article
- Case report of a combined oncocytoma and type 1 papillary renal cell carcinoma: a rare entity.Pathologica · 2019Article
- A back-to-back tumor composed of papillary renal cell carcinoma and oncocytoma treated by laparoscopic partial nephrectomy: a case report.Journal of medical case reports · 2018Article
- Papillary renal cell carcinoma within a renal oncocytoma: Case report of very rare coexistence.Canadian Urological Association journal = Journal de l'Association des urologues du Canada · 2014Article
- Renal collision tumour of papillary cell carcinoma and chromophobe cell carcinoma with sarcomatoid transformation: A case report and review of the literature.Canadian Urological Association journal = Journal de l'Association des urologues du Canada · 2014Article
- Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
An asymptomatic 1-cm large papillary renal cell carcinoma (RCC) embedded in a 3.5-cm large oncocytoma was diagnosed and removed by right nephrectomy in a 68-year-old male investigated for the abdominal symptoms associated with cholelithiasis. The papillary RCC displayed positive immunohistochemical stainings with cytokeratin 7, alpha-methylacyl-CoA racemase and vimentin and was negative for the E-cadherin and CD117 immunostains, whereas the oncocytoma part showed opposite staining patterns. No gains of chromosomes 7 and 17 or loss of chromosome Y was detected in the papillary carcinoma by fluorescent in situ hybridization with centromeric enumeration probes. This finding is in keeping with the morphologic diagnosis of type 2 papillary RCC reported to have lower rates of these characteristic chromosomal changes. The combination of papillary RCC and oncocytoma, two tumours of different postulated origin, is extremely rare. It may represent a simple coincidence, but 2 previous cases and our current one share a few features, including the intimate embedment of the papillary RCC in the oncocytoma, the small size of the RCC and the old age of the patients. This case raises the point that renal oncocytomas can contain a hidden malignant tumour.
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Registered trials
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.