Imaging manifestations of paraganglioma of urinary bladder
10.13929/j.issn.1003-3289.2024.06.024
- VernacularTitle:膀胱副神经节瘤影像学表现
- Author:
Wanjun YU
1
;
Chunquan ZHANG
Author Information
1. 南昌大学第二附属医院超声科,江西南昌 330000
- Keywords:
urinary bladder neoplasms;
pheochromocytoma;
diagnostic imaging
- From:
Chinese Journal of Medical Imaging Technology
2024;40(6):912-916
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the imaging manifestations of paraganglioma of urinary bladder(PUB).Methods Data of 9 patients with single PUB confirmed by surgical pathology were retrospectively analyzed.Among 9 cases,8 cases underwent abdominal ultrasonography,6 underwent pelvic CT and 6 underwent pelvic MR examination.The imaging manifestations of PUB were observed.Results All 9 PUB lesions shaped round or ellipsoid,with wide base,clear boundary and regular shape,the diameters were 14-41 mm,with an average of(27.3±9.l)mm.Two lesions located at the left lateral wall,1 at the left anterior wall,2 at the right lateral wall and 4 at the right anterior wall of the bladder.Two dimensional ultrasound displayed hypoechoic lesions in all 8 cases(8/8,100％),and"bladder mucosa line"sign was detected in 6 cases(6/8,75.00％),while CDFI showed rich blood flow signals in 6 lesions(6/8,75.00％),spot and strip blood flow signal in 1 lesion(1/8,12.50％)but no blood flow signal in 1 case(1/8,12.50％).CT showed that all 6 lesions(6/6,100％)present as soft tissue densities,1(1/6,16.67％)with intratumoral cystic change and necrosis,while"bladder mucosa line"sign was found in 2 cases(2/6,33.33％).MRI showed all 6 lesions(6/6,100％)located under the bladder mucosa,and"bladder mucosa line"sign was clearly visible(6/6,100％).Four lesions(4/6,66.67％)present as slight hyperintensities,1(1/6,16.67％)as slight hypointensity and 1 as isointense(1/6,16.67％)on T1WI,5(5/6,83.33％)as slight hyperintensity(n=5)and 1 as isointense(1/6,16.67％)on fat suppression-T2WI,5(5/6,83.33％)as high signals but 1(1/6,16.67％)as slightly hyperintensity on diffusion weighted imaging.Significant enhancements of lesions(6/6,100％)were noticed on both enhanced CT and MRI.Conclusion The imaging manifestations of PUB had certain characteristics,which were helpful to diagnosis.
