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Click Thirty-one year old woman with inflammatory pseudotumor of the urinary bladder.
Abdominal US scan performed with a convex array transducer (3-6MHz) on a Toshiba Aplio 500®. Axial scanning plane through the hypogastrium demonstrates the partially filled urinary bladder, with a thickened wall. Maximum thickness was 21mm. In the right-anterior segment of the thickened wall there is a round, hypoechoic area of 19mm diameter. The surrounding fat is hyperechoic . Colour Doppler and Power Doppler imaging in the same axial scanning plane show vascularization within the thickened wall.


Click Thirty-one year old woman with inflammatory pseudotumor of the urinary bladder. Contrast-enhanced CT, performed with a SimensSensation® (64 slice-CT). Radiation dose: 120Kv and 70 mAs. Injection of 120ml of 400mg/ml iodine concentration non-ionic contrast agent (Iomeron®). Images were acquired 60s after contrast injection. Axial 1,5 thickness images demonstrate right lateral bladder wall thickening. Maximum thickness is 21mm. The mucosal surface is rim enhancing and has multiple papillary projections protruding into the urinary bladder lumen. Within the thickened wall, there is a nodular, 20mm diameter hypoenhancing area with hyperenhancing margins.

Click Thirty-one year old woman with inflammatory pseudotumor of the urinary bladder. Contrast-enhanced CT, performed with a SimensSensation® (64 slice-CT). Radiation dose: 120Kv and 70 mAs. Injection of 120ml of 400mg/ml iodine concentration non-ionic contrast agent (Iomeron®). Images were acquired 60s after contrast injection. Coronal 4mm thickness reconstruction images demonstrate right lateral bladder wall thickening. Maximum thickness is 21mm. The mucosal surface is rim enhancing and has multiple papillary projections protruding into the urinary bladder lumen. Within the thickened wall, there is a nodular, 20mm diameter hypoenhancing area with hyperenhancing margins.

Click Thirty-one year old woman with inflammatory pseudotumor of the urinary bladder. Pelvic MR performed with a Philips Intera® (1,5 T). Axial T2-weighted images were obtained by spin-echo technique (TR/TE: 8148/150 ms) and demonstrate the thickening of the right urinary bladder wall, with a nodular solid area of intermediate signal intensity. The mucosal surface of the thickened wall has multiple papillary projections.

Click Thirty-one year old woman with inflammatory pseudotumor of the urinary bladder. Pelvic MR performed with a Philips Intera® (1,5 T). Coronal T2-weighted images were obtained by spin-echo technique (TR/TE: 8148/150 ms) and demonstrate the thickening of the right urinary bladder wall, with a nodular solid area of intermediate signal intensity. The mucosal surface of the thickened wall has multiple papillary projections.

Click Thirty-one year old woman with inflammatory pseudotumor of the urinary bladder. Pelvic MR performed with a Philips Intera® (1,5 T). Coronal T1-weighted images were obtained by 3D spoiled turbo gradient echo technique (TR/TE: 3,25/1,55 ms) with SPAIR fat suppression and SENSE acceleration (factor 2). They demonstrate the right urinary bladder wall thickening.

Click Thirty-one year old woman with inflammatory pseudotumor of the urinary bladder. Pelvic MR performed with a Philips Intera® (1,5 T). Diffusion-weighted images were obtained by echo planar imaging technique, with a TR/TE/TI of 1300/180/90 ms and b values of 0 s/mm2, 1000 s/mm2 and 1500 s/mm2. The parietal thickening of the urinary bladder is well depicted at lower b values. At higher b values, the diffusion restriction of the nodular component of the lesion is evident, demonstrating its high cellularity.

Click Thirty-one year old woman with inflammatory pseudotumor of the urinary bladder. Pelvic MR performed with a Philips Intera® (1,5 T). Diffusion-weighted images were obtained by echo planar imaging technique, with a TR/TE/TI of 1300/180/90 ms and b values of 0, 1000 and 1500 s/mm2. ADC maps were built based on the three b values. The nodular area of the lesion, which was brighter at higher b values, has also lower signal intensity in the ADC map, confirming restricted diffusion.