Primary renal angiosarcoma with extensive hemorrhage: CT and MRI findings

Vol. 45 (2): 402-405, March – April, 2019

doi: 10.1590/S1677-5538.IBJU.2018.0375


RADIOLOGY PAGE

Suk Hee Heo 1, Sang Soo Shin 1, Taek Won Kang 2, Ga Eon Kim 3
1 Department of Radiology, Chonnam National University Medical School, Gwangju, South Korea; 2 Department of Urology, Chonnam National University Medical School, Gwangju, South Korea; 3 Department of Pathology, Chonnam National University Medical School, Gwangju, South Korea

ABSTRACT

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.

Keywords: Magnetic Resonance Imaging; Tomography, X-Ray Computed

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