[A Case of Renal Anastomosing Hemangioma]

Hinyokika Kiyo. 2022 Aug;68(8):265-269. doi: 10.14989/ActaUrolJap_68_8_265.
[Article in Japanese]

Abstract

A 65-year-old man was found to have a 1.7 cm right renal mass by follow-up abdominal computed tomography for left total nephrectomy after a traffic accident. The renal mass progressed slowly to 2.2 cm in three years and enhanced magnetic resonance imaging revealed marked T2 weighting hyperintensity of the lesion. Although a radiologist (TK) suggested the diagnosis renal anastomosing hemangioma preoperatively, we could not deny the possibility of renal cell carcinoma completely. Therefore, the patient underwent robot-assisted laparoscopic partial nephrectomy. The tumor was successfully removed without any renal arterial clamping or parenchymal excision. Histopathologically, the lesion was composed of capillary-size blood vessels lined by a single layer of endothelial cells, and was diagnosed as a renal anastomosing hemangioma. There were no signs of postoperative recurrence during the 3 month follow-up.

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Carcinoma, Renal Cell* / diagnostic imaging
  • Carcinoma, Renal Cell* / surgery
  • Endothelial Cells / pathology
  • Hemangioma* / diagnostic imaging
  • Hemangioma* / surgery
  • Humans
  • Kidney Neoplasms* / diagnostic imaging
  • Kidney Neoplasms* / surgery
  • Male
  • Nephrectomy / methods