Instruments are passed through the scope to break up the stone into small pieces that can be urinated out.

CNN: What can I do for kidney stones?

Fresh drops speckled his windshield as he turned in to his neighborhood, through a break in the stone wall that had once marked the bounds of the farm.

NEWYORKER: Outage

Stones that are resistant to lithotripsy may be treated with a surgical procedure known as a percutaneous nephrolithotomy, in which an instrument is passed through the skin into the kidney to grab and break up or remove the stone.

CNN: What can I do for kidney stones?

GCSEs, which would be absorbed into the "intermediate" level of the diploma structure, would be downgraded to a "stepping stone and a progress check, rather than the present artificial break-point".

BBC: NEWS | UK | Northern Ireland | Exam reform may not affect NI