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Primary renal angiosarcoma mimicking a renal cell carcinoma
M B Desai1, Q Chess, J B Naidich
1Department of Medicine, North Shore University Hospital, Cornell University Medical College, Manhasset, New York 11030.
Urologic Radiology
|January 1, 1989
Summary
Primary renal angiosarcoma is a rare cancer mimicking renal cell adenocarcinoma. Diagnosis relies on histology, but capsular blood supply and lack of venous invasion suggest angiosarcoma, particularly with new consumption coagulopathy.
Area of Science:
- Oncology
- Radiology
- Pathology
Background:
- Primary renal angiosarcoma is an exceptionally rare renal malignancy.
- It presents radiologically similar to the more common renal cell adenocarcinoma (hypernephroma).
Observation:
- Both tumors appear as hypervascular masses on imaging.
- A key diagnostic clue for angiosarcoma is a tumor with a capsular blood supply.
- The absence of venous invasion can also suggest angiosarcoma.
Findings:
- Histological confirmation is essential for definitive diagnosis of both tumor types.
- Consumption coagulopathy, appearing de novo, may be associated with renal angiosarcoma.
Implications:
- Differentiating renal angiosarcoma from renal cell adenocarcinoma is crucial for appropriate patient management.
- Radiological findings, such as capsular blood supply and lack of venous invasion, can aid in early suspicion of this rare tumor.
- Clinical presentation, including consumption coagulopathy, should prompt consideration of renal angiosarcoma.