Risk | Number of IELs | % of total IELs | No. IELs associated with malignant tumors | % IELs associated with malignant tumors | |
---|---|---|---|---|---|
Slight | Ductal hyperplasia n = 17 | 27% | 8/17 | 47% | |
Intermediate | Atypical ductal hyperplasia n = 18 | 29% | 17/18 | 95% | |
High | Ductal carcinoma in situ n = 28 | 44% | 25/28 | 89% | |
   ✓ low grade | 6 | 6/6 | 100% | ||
   ✓ intermediate | 11 | 9/11 | 82% | ||
   ✓ high | 11 | 10/11 | 91% |