McCune et al reported a scale for grading the size of the thymus in chest CT images. The authors are from the University of California San Francisco and the University of Michigan.
Patient selection: chest CT to include the region of the thymus
Parameters:
(1) fat
(2) soft tissue (thymic)
(3) mass-like appearance (concern for hyperplasia or thymoma)
Fat
Soft Tissue
Mass-Like
Grade
all
none
none
0
some
barely recognizable
none
1
some
minimal, more obvious
none
2
some
moderate
none
3
some
moderate
almost
4
NA
NA
mass-like
5
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