International Journal of Thyroidology

Table. 2.

Table. 2.

Risk stratification of malignant struma ovarii cases

Low risk Intermediate risk High risk
<4 cm >4 cm
EOE 1 EOE 2 EOE 3 or 4
LVI Positive lymph nodes
No metastasis Distant metastasis
Negative margins Positive margins
Grade: well-differentiated Grade: moderately-differentiated Grade: poorly-differentiated

EOE: extraovarian extension, EOE 1: confined to ovary, EOE 2: local capsule rupture during surgery, EOE 3: positive pelvic washing, EOE 4: definitive pelvic invasion, LVI: lymphovascular invasion

Int J Thyroidol 2023;16:184-9 https://doi.org/10.11106/ijt.2023.16.2.184
© 2023 Int J Thyroidol