Solitary fibrous tumor of the bladder: A rare cause of bladder outlet obstruction in an adult male

Návan van Jaarsveld; Alessandro Pietro Aldera; Jeff John

doi:10.1002/iju5.12789

Solitary fibrous tumor of the bladder: A rare cause of bladder outlet obstruction in an adult male

IJU Case Rep. 2024 Nov 19;8(1):11-14. doi: 10.1002/iju5.12789. eCollection 2025 Jan.

Authors

Návan van Jaarsveld¹, Alessandro Pietro Aldera^{2

3}, Jeff John^{1

4}

Affiliations

¹ Division of Urology, Department of Surgery Frere Hospital and Walter Sisulu University East London South Africa.
² JWD Pathology Inc Cape Town South Africa.
³ Division of Anatomical Pathology University of Cape Town Cape Town South Africa.
⁴ Division of Urology, Department of Surgery Groote Schuur Hospital and University of Cape Town Cape Town South Africa.

Abstract

Introduction: Solitary fibrous bladder tumors are extremely uncommon, with only a few cases reported. These fibroblastic mesenchymal neoplasms are typically benign, indolent, and slow growing.

Case presentation: A 44-year-old male patient with obstructive uropathy was referred to our unit for workup. Ultrasonography and MRI of the pelvis showed a large, well-circumscribed bladder mass, also visualized cystoscopically. This mass was excised en bloc using the Pfannenstiel approach. Histopathological and immunohistochemical analyses revealed a solitary fibrous tumor.

Conclusion: The management of SFTs can be challenging due to the lack of established guidelines. Hence, we offered our patient long-term follow-up. Twelve months postoperatively, no recurrence or metastases were found on the follow-up imaging.

Keywords: bladder; bladder malignancies; solitary fibrous tumor.