The purpose of this exhibit is:

1. Describe the various clinical and radiologic manifestations of solitary fibrous tumor in genitourinary tract.
2. Discuss MR strategies for diagnosis of solitary fibrous tumor.

Introduction

Pathogenesis and clinical manifestation of solitary fibrous tumor

 -  Relation to the hemangiopericytoma

Imaging features

• - US
• - CT
• - MR
• - Prominent feeding vessels

Solitary fibrous tumor of the adrenal gland

Solitary fibrous tumor of the kidney

Solitary fibrous tumor of the bladder

Solitary fibrous tumor of the prostate gland 

Solitary fibrous tumor of the retroperitoneum and pelvis

Other rare locations

 The major teaching points of this exhibit are:

1. The imaging characteristics and locations of solitary fibrous tumor in the genitourinary tract vary widely, with mostly large masses mimicking malignant lesions.
2. The role of the radiologist is to ensure that solitary fibrous tumors are diagnosed preoperatively if possible and are differentiated from the malignant lesions using either particular imaging findings or imaging-guided biopsy.
3. Familiarity with the manifestations of solitary fibrous may help to avoid unnecessary radical surgery before histopathologic proof of malignancy is obtained.