Thomassin-Naggara et al reported a magnetic resonance imaging grading system for sonographically indeterminate adnexal masses.
Patient selection: indeterminate mass on ultrasound
Analysis: MRI
|
Finding
|
Grade
|
|
no adnexal mass
|
1
|
|
pelvic mass not adnexal
|
1 (grade separately)
|
|
purely cystic mass
|
2
|
|
purely endometriotic mass
|
2
|
|
purely fatty mass
|
2
|
|
no wall enhancement
|
2
|
|
solid tissue with homogeneous hypointense T2-weighted AND homogeneous hypointense high b value of diffusion-weighted solid tissue
|
2
|
|
unilocular cyst with proteinaceous or hemorrhagic fluid AND does not comply with endometriotic fluid signal intensity AND no solid tissue
|
3
|
|
multilocular cyst and no solid tissue
|
3
|
|
mass with solid tissue that is enhanced with time intensity curve type 1 on dynamic contrast enhanced MRI (excluding dark-dark solid tissue)
|
3
|
|
adnexal mass with solid tissue that enhanced with a time intensity curve type 2 on dynamic contrast enhanced MRI (excluding dark-dark solid tissue)
|
4
|
|
solid mass with solid tissue that is enhanced with a time intensity curve type 3 on dynamic contrast enhanced MRI
|
5
|
|
omental thickening or nodules detected
|
5
|
