A 50-year-old seropositive woman, came with complaints of lower abdominal pain and increased urinary frequency since three months
CT IVU shows an irregular, small-capacity urinary bladder with extreme fibrosis and contracture of the bladder walls (thimble bladder). There is a 14 mm sized calculus in the bladder. There is irregularity and narrowing of the proximal 2 cm of the left ureter.