Alleging a radiologist missed something on a film and caused you harm can be tricky. Often the “miss” is not obvious to the untrained eye (otherwise they wouldn’t have missed it), and the defense is usually that, only with the benefit of hindsight, can you now “see” the finding.
Here is an article that recently appeared in Trial News on the subject:
Hindsight Bias in Radiology “Miss” Cases: A Get-Out-Of-Jail-Free Card for Negligent Radiologists?