Objective And Methods: We report two new cases of this rare and aggressive tumour; one case appeared in the earliest age reported in the literature (case #2). We also review etiological, diagnostic and therapeutic features.
Results: Despite aggressive surgery and adjuvant chemotherapy it has a very poor prognosis, with disease progression within 6 months in both cases.
Conclusions: Sarcomatoid renal cell carcinoma is an infrequent entity, extremely aggressive and requires radical surgery at the time of diagnosis due to its advanced stage, although results are poor. It can also appear in young people with the same aggressiveness than in adult age.
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J Am Soc Cytopathol
November 2024
Cytopathology Center of Excellence, Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.
Introduction: Renal cell carcinoma (RCC) involves serosal surfaces in 2%-3% of cases, and thus few papers describe serous fluid cytology (SFC) involvement by RCC. This diagnosis is challenging, given its rarity, nondescript cytomorphologic features and infrequent expression of widely used epithelial markers MOC31 and BerEP4. We describe our institutional experience with RCC in SFC specimens.
View Article and Find Full Text PDFPathol Res Pract
December 2024
Department of Pathology, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahi-machi, Abeno-ku, Osaka 545-8585, Japan.
To predict the therapeutic response of systemic therapy, comprehensive analyses of the tumor microenvironment in papillary renal cell carcinoma (pRCC) have been conducted previously using immunohistochemistry and RNA sequencing. This study aimed to evaluate the correlation between hematoxylin and eosin-based histological immunophenotypes and gene signatures employed in several clinical trials predicting responsiveness to immune checkpoint inhibitors and tyrosine kinase inhibitors, using data from the Cancer Genome Atlas (TCGA)-KIRP cohort (n = 254). Herein, we evaluated tumor-associated immune cells (TAICs) using three methodologies previously reported in clear cell RCC: a 3-tier immunophenotype (desert, excluded, and inflamed) based on the spatial distribution of TAICs; a 4-tier immunophenotype (cold, immune-low, excluded, and hot) considering both the location and degree of TAICs; and an inflammation score (score 0, 1, and 2) focusing only on the degree of TAICs.
View Article and Find Full Text PDFCureus
November 2024
Department of Internal Medicine, Merit Health Wesley, Hattiesburg, USA.
Metastatic sarcomatoid renal cell carcinoma (sRCC) is a significant therapeutic and diagnostic challenge due to its rarity and aggressiveness, which contribute to its poor prognosis. This case report presents the case of a 47-year-old Caucasian man with shortness of breath and right-sided abdominal pain. History revealed an extensive smoking history, a left renal mass diagnosed two months ago with inconclusive results, and an enlarged mass on computed tomography (CT) scan one week ago in an emergency department (ED) visit that showed signs consistent with metastatic disease.
View Article and Find Full Text PDFHinyokika Kiyo
September 2024
The Department of Urology, Kyoto University Hospital.
A 68-year-old male was referred to our hospital because plain computed tomography (CT) showed right hydronephrosis. Contrast-enhanced CT revealed a mass with an irregular margin and poor contrast effect in the lower pole of the right kidney, which invaded the perirenal fat tissues and the area around the inferior vena cava (IVC). Moreover, a thrombus extending from the right renal vein to the IVC was detected, some of which was suggestive of tumor components on contrast-enhanced magnetic resonance imaging (MRI).
View Article and Find Full Text PDFBJU Int
December 2024
Division of Urology, Department of Surgery, McGill University, Montréal, Quebec, Canada.
Objective: To evaluate and compare the outcomes of patients with localised renal cell carcinoma (RCC) with and without sarcomatoid features and the impact of this on cancer recurrence and survival.
Material And Methods: The Canadian Kidney Cancer information system database was used to identify patients diagnosed with localised RCC between January 2011 and December 2022. Patients with pT1-T3, n Nx-N0N1, M0 stage and documented sarcomatoid status were included.
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