Key result
CT and MRI imaging of a primary renal angiosarcoma revealed a 16 cm exophytic mass with extensive hemorrhage, centripetal peripheral nodular enhancement, and a tangled mesh of tumor vessels.
Why the study?
Primary angiosarcomas of the kidney are very rare and highly aggressive tumors with a poor prognosis.
Case Report (n=1)
Primary renal angiosarcoma should be included in the differential diagnosis of hemorrhagic renal tumors with prominent vasculature on CT and MRI.
May warrant including primary renal angiosarcoma in differential of hemorrhagic renal masses with prominent vessels; case report leaves open validation.
Primary angiosarcomas of the kidney are very rare, but highly aggressive tumors showing poor prognosis. Patients frequently complain of flank pain, hematuria, or a palpable mass. We present a case of primary renal angiosarcoma occurring in a 61-year-old man. CT images depicted a huge exophytic mass (16 cm in diameter) in the right kidney, exhibiting extensive hemorrhage. The mass showed centripetal peripheral nodular enhancement on dynamic contrast-enhanced images. Furthermore, MR imaging revealed a tangled mesh of tumor vessels in the periphery of the mass. We suggest its inclusion in the differential diagnosis of cases of hemorrhagic renal tumors with prominent vasculature.
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Heo et al. (2019) conducted a case report in Primary renal angiosarcoma (n=1). CT and MRI imaging was evaluated. CT and MRI imaging of a primary renal angiosarcoma revealed a 16 cm exophytic mass with extensive hemorrhage, centripetal peripheral nodular enhancement, and a tangled mesh of tumor vessels.
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