This 80 year-old man presented with haematuria, dysuria and urinary frequency. He had had several previous microbiologically proven urinary tract infections. The multiple radio-opaque lesions seen in the pelvis are bladder calculi.
Bladder stones are uncommon in the United Kingdom.
They may be asymptomatic but are more prevalent in those with bladder outflow obstruction or recurrent urinary sepsis. They can induce squamous metaplasia and are associated with an increased risk of squamous carcinoma. These stones were removed at open surgery. The mass clinically was arising from the right kidney. This CT image shows a large, partially necrotic lesion filling the right side of his abdomen and replacing the right kidney.