Renal cell carcinoma with sarcomatoid dedifferentiation is an entity of RCC that has undergone an anaplastic transformation with both a carcinomatous and a sarcomatous component. The standard treatment in metastatic patients is immunotherapy. The aim of this article is to describe our case of metastatic recurrent RCC with sarcomatoid dedifferentiation in a 59 year old male patient treated with nephrectomy and multiple metastasectomies followed by Cabozantinib. Consecutive PET-CT scans showed no evidence of recurrence, three years after the last metastasectomy, and the patient is having currently a normal life. Sarcomatoid dedifferentiation remains a poor prognosis factor in RCC. Surgery for metastases followed by Cabozantinib may be a therapeutic option in metastatic young patients. However, a prospective randomized trial would be the best option to validate this approach.
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http://dx.doi.org/10.18632/oncotarget.27543 | DOI Listing |
Eur Urol Open Sci
January 2025
Department of Urology, University of California-San Diego School of Medicine, La Jolla, CA, USA.
Background And Objective: Our aim was to determine the clinical characteristics, temporal trends, and survival outcomes for sarcomatoid-dedifferentiated renal cell carcinoma (sRCC), as sRCC has historically had poor prognosis and a contemporary cohort has not been well characterized in a population-based study.
Methods: Data for 302 630 RCC cases from 2010 to 2019 were extracted from the National Cancer Data Base, of which 4.1% (12 329) were sRCC.
Int J Surg Pathol
November 2024
Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.
() amplification via fluorescence in-situ hybridization (FISH) is the gold standard test used for confirming the diagnosis of atypical lipomatous tumor/well differentiated liposarcoma and dedifferentiated liposarcoma. It is also used as a screening test in high grade spindle cell or pleomorphic neoplasms. FISH is considered positive for amplification when the /CEP12 ratio is greater than 2; however, a ratio between 2 and 3 is considered a "low-level" amplification and raises the possibility of a false positive result; thus, posing a diagnostic dilemma.
View Article and Find Full Text PDFRev Med Inst Mex Seguro Soc
March 2024
Instituto Mexicano del Seguro Social, Centro Médico Nacional Siglo XXI, Hospital de Oncología, Anatomía Patológica. Ciudad de México, México.
Background: Osteosarcoma is the most common primary malignant bone neoplasm in young people. Presentation in non-bone tissues comprises 2 to 5% of all osteosarcomas and less than 1% of all soft tissue sarcomas. On rare occasions it presents as a superficial tumor, making it necessary to make a differential diagnosis with benign entities, such as pyogenic granuloma ossificans, and malignant neoplasms, with sarcomatoid differentiation such as carcinosarcoma and dedifferentiated melanoma.
View Article and Find Full Text PDFWorld J Clin Cases
October 2024
Department of Oncology, the Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China.
Target Oncol
November 2024
Oncology Unit, Macerata Hospital, Macerata, Italy.
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