Correlation of diastase resistant periodic acid Schiff (DPAS) scores with subsequent malignant histology
| In situ only | Invasive carcinoma types and grades | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| DPAS score | Number of cases with malignant histology | DCIS | LCIS | Ductal grade 1 | Ductal grade 2 | Ductal grade 3 | Ductal ?grade | Lobular | Ductal/lobular | Tubular | Other |
| DCIS, ductal carcinoma in situ; LCIS, lobular carcinoma in situ; LN met, lymph node metastasis from breast carcinoma; med, medullary carcinoma; muc, mucinous/colloid carcinoma. | |||||||||||
| − | 38 | 7 | 1 | 2 | 13 | 9 | 4 | – | – | 2 | – |
| ± | 10 | – | – | 1 | 4 | 4 | – | – | – | 1 | – |
| + | 36 | 6 | – | 12 | 7 | 8 | 2 | – | – | 1 | – |
| ++ | 48 | 6 | – | 11 | 15 | 9 | – | 1 | 1 | 1 | 1 med |
| 1 muc | |||||||||||
| 2 LN met | |||||||||||
| +++ | 14 | – | – | – | 4 | 4 | 1 | 3 | 1 | – | 1 muc |
| Total | 144 | 19 | 1 | 26 | 43 | 34 | 7 | 4 | 2 | 5 | 5 |