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. 2022 Mar 14;33(1):155–196. doi: 10.1007/s12022-022-09710-8

Table 2.

Modified Weiss system

Parameter Score
Mitotic count > 5 per 50 high-power fields (10 mm2) 2
Clear cells in ≤ 25% 2
Atypical mitosis 1
Necrosis 1
Capsular invasion 1
Total score 7
A score of ≥ 3 indicates a diagnosis of adrenal cortical carcinoma