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Radiogenomics Pilot Study: Association Between Radiomics and Single Nucleotide Polymorphism-Based Microarray Copy Number Variation in Diagnosing Renal Oncocytoma and Chromophobe Renal Cell Carcinoma.
Int J Mol Sci
November 2024
Division of Imaging Sciences and Technology, School of Medicine, Ninewells Hospital, University of Dundee, Dundee DD1 9SY, UK.
RO and ChRCC are kidney tumours with overlapping characteristics, making differentiation between them challenging. The objective of this research is to create a radiogenomics map by correlating radiomic features to molecular phenotypes in ChRCC and RO, using resection as the gold standard. Fourteen patients (6 RO and 8 ChRCC) were included in the prospective study.
View Article and Find Full Text PDFFrequency of benign tumors after partial nephrectomy and the association between malignant tumor findings and preoperative clinical parameters.
BMC Urol
August 2024
Department of Urology, University Hospital Olomouc Palacký University Olomouc, Olomouc, Czech Republic.
Background: Partial nephrectomy (PN) has become the dominant treatment modality for cT1 renal tumor lesions. Tumors suspected of malignant potential are indicated for surgery, but some are histologically classified as benign lesions after surgery. This study aims to analyze the number of benign findings after PN according to definitive histology and to evaluate whether there is an association between malignant tumor findings and individual factors.
View Article and Find Full Text PDFLow-grade oncocytic tumor of the kidney: imaging features of a novel tumor entity.
Abdom Radiol (NY)
December 2024
Adult Department of Radiology, Service d'Imagerie Adulte, AP-HP-Centre, Hôpital Necker Enfants Malades, Université de Paris Cité, 149 Rue de Sèvres, 75015, Paris, France.
Article Synopsis
- Low-grade oncocytic tumor (LOT) is a rare type of kidney tumor that resembles other renal tumors, making it hard to diagnose; this study aimed to better understand its imaging characteristics.* -
- Researchers analyzed preoperative imaging from 12 confirmed LOT cases using CT or MRI, finding common features such as well-defined borders and specific patterns of enhancement.* -
- The study concludes that certain imaging features can suggest LOT, but further research is needed for validation, and a biopsy is recommended before treatment decisions.*
Comparison of conventional diffusion-weighted imaging and intravoxel incoherent motion in differentiating between chromophobe renal cell carcinoma and renal oncocytoma: a preliminary study.
Br J Radiol
May 2024
Northern Jiangsu People's Hospital Affiliated to Yangzhou University, Yangzhou 225001, China.
Objective: Quantitative comparison of the diagnostic efficacy of conventional diffusion-weighted imaging (DWI) and intravoxel incoherent motion (IVIM) in differentiating between chromophobe renal cell carcinoma (ChRCC) from renal oncocytoma (RO).
Methods: A total of 48 patients with renal tumours who had undergone DWI and IVIM were divided into two groups-ChRCC (n = 28) and RO (n = 20) groups, and the apparent diffusion coefficient (ADC), true diffusivity (D), pseudo-diffusion coefficient (D*), perfusion fraction (f) and their diagnostic efficacy were compared between the two groups.
Results: The D* values were higher in the ChRCCs group compared to the RO groups (0.
L1 Cell Adhesion Molecule (L1CAM) Expression and Molecular Alterations Distinguish Low-Grade Oncocytic Tumor From Eosinophilic Chromophobe Renal Cell Carcinoma.
Mod Pathol
May 2024
Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York. Electronic address:
Renal low-grade oncocytic tumor (LOT) is a recently recognized renal cell neoplasm designated within the "other oncocytic tumors" category in the 2022 World Health Organization classification system. Although the clinicopathologic, immunohistochemical, and molecular features reported for LOT have been largely consistent, the data are relatively limited. The morphologic overlap between LOT and other low-grade oncocytic neoplasms, particularly eosinophilic chromophobe renal cell carcinoma (E-chRCC), remains a controversial area in renal tumor classification.
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