A major review of medical scans at Caboolture Hospital's outpatient clinic has found 38 patients did not get follow-up care, prompting the health service to apologise again for the bungle.

In late September, Metro North Health admitted a change to internal procedures at the hospital's outpatient department in April 2023 meant the scans of more than 12,500 patients may not have been seen by doctors.

The problem only became public after the ABC questioned the health service about the issue affecting thousands of patients.

The hospital and health service were first alerted to the problem in early September when a cancer patient, unaware they had advanced cancer, died after a five-week delay to receiving scans.

Since then, a clinical team has been reviewing the patients' medical images,

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