Solitary Fibrous Tumour of Pelvic Soft Tissue Mimicking A Prostatic Mass: Diagnosis and Management

Keval N Patel,Shashank J Pandya

doi:10.26502/jcsct.5079001

Abstract

Solitary fibrous tumor (SFT) is a rare soft tissue tumor occurring rarely in extrapleural sites like the pelvis. We here present a case of SFT of the pelvis which was initially diagnosed radiologically as a mass arising from prostate and on biopsy found to be a solitary fibrous tumor. On exploration, there was a well encapsulated tumor in retro-vesical space separate from prostate. Histopathology with Immuno-histochemistry confirmed the diagnosis of SFT. We retrospectively reviewed the literature to avoid such confusion in future. Pubmed search was made with the following keywords: solitary fibrous tumor, treatment, soft tissue, pelvis, radiology, and histopathology.

Highlights

Solitary fibrous tumor (SFT) is a rare soft tissue tumor and even rarer in pelvic soft tissue [1]
The knowledge of extraprostatic versus prostatic site of origin can avoid unnecessary cystoprostatectomy and its related morbidities especially when a tumor is large in size as it is very difficult to diagnose the site of origin based on available preoperative parameters
IHC was done which was suggestive of SFT

Summary

Introduction

SFT is a rare soft tissue tumor and even rarer in pelvic soft tissue [1]. The knowledge of extraprostatic versus prostatic site of origin can avoid unnecessary cystoprostatectomy and its related morbidities especially when a tumor is large in size as it is very difficult to diagnose the site of origin based on available preoperative parameters. We retrospectively analyzed the factors which may lead to the diagnosis of the tumor site preoperatively and precautions to be taken during surgery if the site of origin is not known

Case Description

Discussion

Findings

Conclusion