Author/Authors :
Shi, W College of Medical Imaging - Shanxi Medical University, Shanxi Province, China , Liang, X College of Medical Imaging - Shanxi Medical University, Shanxi Province, China , Wang, X Department of Radiology - First Hospital of Shanxi Medical University, Shanxi Province, China , Qin, J Department of Radiology - First Hospital of Shanxi Medical University, Shanxi Province, China , Zhang, H Department of Radiology - First Hospital of Shanxi Medical University, Shanxi Province, China , Tan, Y Department of Radiology - First Hospital of Shanxi Medical University, Shanxi Province, China
Abstract :
A solitary fibrous tumor of the urinary bladder is an extremely rare type of mesenchymal tumor. We present a case of an 85-year-old woman with a large (14.5×10.7×10.1 cm) protruding intravesical mass detected by computed tomography (CT) and magnetic resonance imaging (MRI), which
was proven to be a solitary fibrous tumor through histopathological
examination. The clinicopathologic and radiological features are here
discussed, along with a review of the published literature on this topic.
Solitary fibrous tumors of the urinary bladder are more common in men
(76%), with a peak incidence in people 40–60 years old. Most such tumors
show heterogeneous intensity with a complete capsule. A decrease in the
T2WI signal with an increase in collagen tissue content and gradual
enhancement on CT/MRI images are their main features. Most such tumors
are positive for CD34 under immunohistochemistry (100% in 24 available
cases). The majority of tumors (88%) studied have been non-malignant and most patients (95.5%) showed favorable prognosis after a long-term follow up.
Keywords :
Solitary fibrous tumor , urinary bladder , computed tomography , magnetic resonance imaging , histopathological
