Over 1,700 patients at risk in 'colossal' NHS mail blunder - BBC News
"At least 1,700 patients may have been harmed by a 'colossal' blunder that meant thousands of patient records were left to pile up in a warehouse.
The number at risk is likely to rise as only two thirds of the 700,000 notes found had been checked, officials said.
Cancer test results and child protection notes were among the documents that were missing in England.
The National Audit Office also said there were questions to answer about the handling of the incident.
...But between 2011 and 2016 a backlog of 709,000 pieces of correspondence piled up in a NHS SBS warehouse.