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Updated: Jul 19, 2026

Unilateral Ureteral Obstruction Model for Investigating Kidney Interstitial Fibrosis
Published on: April 25, 2025
[Solitary fibrous tumor of a kidney: a case report]
Mikio Koroku1, Hitoshi Tanda, Shuji Katoh
1Sanjukai Hospital.
Abstract:
We report a case of solitary fibrous tumor (SFT) arising from a kidney. The patient was an 18-year-old female who visited our hospital with the complaint of left abdominal pain. Computed tomography revealed a slightly enhanced tumor of approximately 3 cm in diameter near the upper calyx of the left kidney. Renal cell carcinoma was suspected, and left nephrectomy was performed under laparoscopy. Histopathological examination revealed proliferation of CD34-positive spindle-shaped cells, and a diagnosis of SFT was made. There has been no local recurrence or distant metastasis for 15 months after the operation.
