McFerrin syndrome (Rorschach radiology)
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This image demonstrates a typical case of McFerrin syndrome.
The S2 nerve roots are normally positioned anteriorly within the thecal sac at the S1/2 level. The remaining caudal descending sacral nerve roots are aligned in a perfect curvilinear arc posteriorly.
First described by Robert McFerrin circa 1988.
However your day of radiology reporting might have gone, this image lets you know you have the best job in the hospital - 'Don't worry, be happy'.