Question: Hello Doctor:
I am 37, male with a history of smoking. I had blood in my urine 4 months ago and it went away by itself. I saw it again around one month ago and the urologist checked my urine and ordered CAT SCAN. Below is the report of CAT SCAN. I am scheduled for to do cystoscopy in mid-march. I am wondering if the CT report is very concerning? If it is concerning do you think my urologist should do the cystoscopy earlier? I much appreciate any suggestions and recommendations.
**URGENT UNEXPECTED FINDING**

CT abdomen and pelvis without and with contrast 02/12/2019:

HISTORY: Hematuria.

TECHNIQUE: Helically acquired axial images were obtained through the abdomen and pelvis both before and after the injection of 100 mL Omnipaque 300 intravenous contrast and supplemented with sagittal and coronal reconstructed images. Automated dose control was utilized

COMPARISON: None.

FINDINGS: There are no urinary tract stones or hydronephrosis. The kidneys demonstrate normal symmetric enhancement and there are no solid renal masses on either side. Delayed phase images demonstrate appropriate excretion of contrast into the collecting system and renal pelvis on each side and no filling defects are evident. Only the proximal half of each ureter is opacified but the ureters are normal caliber without appreciable abnormality. There is a polypoid enhancing mass along the posterior wall of the urinary bladder on the left measuring approximately 18 x 12 mm in transaxial dimensions and 13 mm in CC length. This is most concerning for a urothelial lesion such as transitional cell carcinoma.

The remaining solid organs have a normal contrast-enhanced appearance and are free of acute abnormalities. The gallbladder is unremarkable. The bowel is nonobstructed. The appendix is normal caliber. There is no free air, free fluid or focal inflammatory changes and there is no adenopathy in the abdomen or pelvis.

IMPRESSION:
Enhancing polypoid mass along the posterior wall of the urinary bladder on the left concerning for urothelial malignancy. Cystoscopy is suggested for further evaluation.

Thanks Dr. for your answer. based on the description, Do you consider it big one compared to other reports ? Can you suggest a couple of images that may best fit the description of the report.