A case of a solitary melanocytic renal tumor with no apparent primary lesion or metastasis is reported. Pathologically the tumor was composed of cells with brown pigmentation that strongly reacted to monoclonal antibody HMB-45 immunohistochemically. Few mitotic figures, mild nuclear atypia and nucleolar prominence were observed. These findings confirmed that the tumor cells were melanogenetic but the malignant potential of the tumor was low in comparison to that of typical malignant melanoma. The patient is doing well 44 months after partial resection of the renal tumor and postoperative chemotherapy. The interesting pathological feature may account for the unique clinical course.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Doublecortin-like kinase 1 promotes stem cell-like properties through the Hippo-YAP pathway in prostate cancer.
Int J Med Sci
January 2025
Department of Urology, Kidney and Urology Center, the Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China.
Doublecortin-like kinase 1 (DCLK1) has been revealed to be involved in modulating cancer stemness and tumor progression, but its role in prostate cancer (PCa) remains obscure. Castration-resistant and metastatic PCa exhibit aggressive behaviors, and current therapeutic approaches have shown limited beneficial effects on the overall survival rate of patients with advanced PCa. This study aimed to investigate the biological role and potential molecular mechanism of DCLK1 in the progression of PCa.
View Article and Find Full Text PDFLong-read structural and epigenetic profiling of a kidney tumor-matched sample with nanopore sequencing and optical genome mapping.
NAR Genom Bioinform
March 2025
School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, 6997801 Tel Aviv, Israel.
Carcinogenesis often involves significant alterations in the cancer genome, marked by large structural variants (SVs) and copy number variations (CNVs) that are difficult to capture with short-read sequencing. Traditionally, cytogenetic techniques are applied to detect such aberrations, but they are limited in resolution and do not cover features smaller than several hundred kilobases. Optical genome mapping (OGM) and nanopore sequencing [Oxford Nanopore Technologies (ONT)] bridge this resolution gap and offer enhanced performance for cytogenetic applications.
View Article and Find Full Text PDFUrinary RANTES and MCP-1 as noninvasive biomarkers for differential diagnosis and prediction of treatment response in acute interstitial nephritis.
Clin Kidney J
January 2025
Department of Medicine, Division of Nephrology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
Background: Although kidney biopsy is definitive for the diagnosis of acute interstitial nephritis (AIN) and acute tubular necrosis (ATN), its invasiveness limits its use. We aimed to identify urine biomarkers for differentiating AIN and ATN and to predict the response of patients with AIN to steroid treatment.
Methods: In this prospective cohort study, biopsy-proven ATN ( = 34) and AIN ( = 55) were included.
The positive feedback loop between SP1 and MAP2K2 significantly drives resistance to VEGFR inhibitors in clear cell renal cell carcinoma.
Int J Biol Sci
January 2025
Department of Urology, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, China.
Clear cell renal cell carcinoma (ccRCC) is one of the most common and aggressive malignancies of the urinary system. Despite being the first-line treatment for advanced ccRCC, vascular endothelial growth factor receptor inhibitors (VEGFRis) face significant limitations due to both initial and acquired resistance, which impede complete tumor eradication. Using a CRISPR/Cas9 library screening approach, was identified as a resistance-associated gene for three prevalent VEGFRis (Sunitinib, Axitinib, and Sorafenib).
View Article and Find Full Text PDFGlycine Decarboxylase Regulates Renal Carcinoma Progression via Interferon Stimulated Gene Factor 3-Mediated Pathway.
Int J Biol Sci
January 2025
Department of Biochemistry, School of Medicine, Keimyung University, Daegu 42601, Republic of Korea.
Renal cell carcinoma (RCC) is considered as a "metabolic disease" due to various perturbations in metabolic pathways that could drive cancer development. Glycine decarboxylase (GLDC) is a mitochondrial enzyme that takes part in the oxidation of glycine to support nucleotide biosynthesis via transfer of one-carbon units. Herein, we aimed to investigate the potential role of GLDC in RCC development.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!