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

Table 3.

Reticulin algorithm

Criteria
Altered reticulin framework in association with one of the following features indicates malignancy:
-Mitotic count > 5 per 50 high-power fields (10 mm²) -Tumor necrosis -Vascular invasion (angioinvasion)

Criteria

Altered reticulin framework in association with one of the following features indicates malignancy:

-Mitotic count > 5 per 50 high-power fields (10 mm²)

-Tumor necrosis

-Vascular invasion (angioinvasion)