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Updated: Nov 11, 2025

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In Vivo, Percutaneous, Needle Based, Optical Coherence Tomography of Renal Masses
Published on: March 30, 2015
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CT Findings of Primary Renal Angiosarcoma
Hisashi Komoto1, Kazuhiro Kitajima1, Yusuke Kawanaka1
1Department of Radiology, Hyogo College of Medicine, Nishinomiya, Japan.
Case Reports in Oncology
|March 29, 2021
Summary
Primary angiosarcomas of the kidney are rare, aggressive tumors. This case highlights a large renal angiosarcoma in a 60-year-old man, emphasizing its unique imaging features for diagnosis.
Area of Science:
- Oncology
- Radiology
- Pathology
Background:
- Primary angiosarcomas of the kidney are exceptionally rare and aggressive vascular neoplasms.
- These tumors are associated with a poor prognosis, necessitating early and accurate diagnosis.
Observation:
- A 60-year-old male presented with left flank pain.
- CT imaging revealed a large (14 cm) exophytic left renal mass with central hemorrhage/necrosis and peripheral nodular enhancement.
Findings:
- The imaging characteristics, including centripetal peripheral nodular enhancement, are suggestive of a highly vascular tumor.
- The presence of central hemorrhage or necrosis is a key feature in differentiating this entity.
Implications:
- Primary renal angiosarcoma should be considered in the differential diagnosis of hemorrhagic renal masses.
- Enhanced understanding of its imaging findings can improve diagnostic accuracy and patient outcomes.

