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Updated: May 21, 2026

A Patient-Derived Xenograft Model for Venous Malformation
Published on: June 15, 2020
Giant cavernous hemangioma in renal graft: a case report
J Gutierrez-Banos1, J Portillo, F Campos
1Department of Urology, University Hospital Valdecilla, School of Medicine, Cantabria University, Santader, Spain. urogbj@humv.es
Background:
We present a case of giant cavernous hemangioma in renal graft tumor; we have not found any cases described in literature.
Clinical Case:
Patient transplanted from a deceased donor, 8 years previous to her admission due to deterioration in renal function, observing a 12-cm renal mass in the front face of the renal graft, which displaces it, provoking obstructive uropathy. On ultrasonography and computed tomography, it is seen as a complicated, cystic lesion. Tumorectomy with a good functional recovery of the graft was carried out. A histopathologic study showed a mass with extensive adherences to the perirenal adipose tissue and a cross section showed a spongy appearance with blood clots in the centre, microscopically formed by vascular channels, lined by a layer of endothelial cells, and filled with blood.
Conclusions:
Giant cavernous hemangioma in renal graft tumor has not been previously described. Given its benign condition, nephron-sparing surgery should be carried out if possible.

