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Renal angiosarcoma: a case report and literature review
Tsu-Yee Joseph Lee1, Joseph Lawen, Rekh Gupta
1Department of Pathology, QEII Health Science Center, Dalhousie University, Halifax, Nova Scotia, Canada.
The Canadian Journal of Urology
|February 28, 2007
Summary
Renal angiosarcoma (AS) is a rare, aggressive kidney cancer that mimics renal cell carcinoma (RCC) on imaging. Histological evaluation is crucial for accurate diagnosis and understanding AS
Area of Science:
- Oncology
- Pathology
- Radiology
Background:
- Renal cell carcinoma (RCC) is the predominant adult kidney cancer.
- Renal angiosarcoma (AS) is a rare, aggressive malignancy with fewer than 25 reported cases.
- RCC and AS share similar radiological appearances, necessitating histological confirmation.
Observation:
- A case of renal AS in a 63-year-old male initially diagnosed as RCC is presented.
- Literature review of renal AS cases (1981-present) was conducted.
- Renal AS presents in middle-aged males, often with left kidney involvement, flank pain, mass, and hematuria.
Findings:
- Imaging findings for AS are suggestive of RCC.
- Metastatic spread is common, with a median survival of 3.5 months.
- Histologically, AS shows vascular spaces lined by pleomorphic endothelial cells (CD31+, CD34+).
- Treatment typically involves radical nephrectomy and radiation therapy.
Implications:
- The similar radiological appearance of AS and RCC highlights the critical role of histological evaluation.
- Early and accurate diagnosis of renal AS is vital due to its poor prognosis.
- Understanding the radiological mimicry of AS is important for clinical management.