Key result
CT imaging of a primary renal angiosarcoma revealed a large exophytic mass with central hemorrhage or necrosis and centripetal peripheral nodular enhancement.
Why the study?
Primary angiosarcomas of the kidney are very rare but highly aggressive tumors showing poor prognosis.
Case Report (n=1)
Primary renal angiosarcoma can present as a large hemorrhagic mass with centripetal peripheral nodular enhancement on CT, which should be included in the differential diagnosis of hemorrhagic renal tumors.
Consider primary renal angiosarcoma in large exophytic masses with centripetal enhancement; single case leaves open prospective validation of imaging criteria.
Primary angiosarcomas of the kidney are very rare but highly aggressive tumors showing poor prognosis. We present a case of primary renal angiosarcoma occurring in a 60-year-old man with left flank pain. CT images depicted a huge exophytic mass (14 cm in diameter) in the left kidney, exhibiting central extensive hemorrhage or necrosis without contrast enhancement. The mass showed centripetal peripheral nodular enhancement on dynamic contrast-enhanced CT images. We suggest its inclusion in the differential diagnosis of cases of hemorrhagic renal tumors with prominent vasculature.
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Komoto et al. (2021) conducted a case report in Primary renal angiosarcoma (n=1). CT imaging was evaluated on CT findings. CT imaging of a primary renal angiosarcoma revealed a large exophytic mass with central hemorrhage or necrosis and centripetal peripheral nodular enhancement.
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