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Updated: Jun 22, 2025
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Published on: March 30, 2015
Hibernoma in the renal sinus: A case mimicking malignancy
Ayano Kashima1, Tsuyoshi Majima1, Tomoaki Muramatsu1
1Department of Urology Aichi Medical University Nagakute Aichi Japan.
Introduction:
Hibernomas are benign tumors of brown adipose tissue. Hibernoma in the renal sinus is extremely rare. Herein, we present the third known case of renal hibernoma.
Case Presentation:
A 71-year-old man reported to our department with a left kidney tumor with an average growth rate of 5 mm/year and a progressive contrast effect on computed tomography. It was diagnosed as a hibernoma following a laparoscopic radical nephrectomy.
Conclusion:
We encountered a rare case of a hibernoma in the renal sinus. Development of new and accurate diagnostic methods for hibernoma, without resorting to nephrectomy, is essential.
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