Table 2.
Changes in CNB diagnoses based on WHO diagnostic categories between outside (y-axis) and MSK (x-axis).
| In-House/MSK Diagnosis | Total | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DUCTAL | LOBULAR | mIC | IBC | PAPILLOMA | PAPILLARY CARCINOMA | Fibroadenoma | Fibroepithelial tumors | |||||||||||||
| Benign breast | Radial scar/ complex sclerosing lesion | FEA | ADH | DCIS | cLCIS/ ALH | Pleomorphic/ florid LCIS | without atypia | with ADH | with DCIS | without invasion | with mIC | invasive | ||||||||
| Outside Diagnosis | DUCTAL | Benign breast | 12 | 2 | 1 | 1 | 1 | 17 | ||||||||||||
| Radial scar/ complex sclerosing lesion | 1 | 1 | 1 | 1 | 4 | |||||||||||||||
| FEA | 6 | 3 | 1 | 10 | ||||||||||||||||
| ADH | 11 | 1 | 17 | 3 | 2 | 2 | 36 | |||||||||||||
| DCIS | 10 | 3 | 2 | 17 | 4 | 1 | 1 | 38 | ||||||||||||
| LOBULAR | cLCIS/ALH | 3 | 1 | 4 | ||||||||||||||||
| Pleomorphic/ florid LCIS | 0 | |||||||||||||||||||
| mIC | 0 | |||||||||||||||||||
| IBC | 1 | 1 | 2 | 1 | 5 | |||||||||||||||
| PAPILLOMA | without atypia | 5 | 2 | 4 | 2 | 3 | 16 | |||||||||||||
| with ADH | 1 | 1 | 2 | |||||||||||||||||
| with DCIS | 2 | 2 | ||||||||||||||||||
| PAPILLARY CARCINOMA | without invasion | 2 | 1 | 3 | ||||||||||||||||
| with mIC | 1 | 1 | ||||||||||||||||||
| invasive | 1 | 1 | ||||||||||||||||||
| Fibroadenoma | 2 | 2 | 4 | |||||||||||||||||
| Fibroepithelial tumors | 1 | 1 | 2 | |||||||||||||||||
| Total | 25 | 2 | 1 | 33 | 21 | 9 | 2 | 18 | 11 | 3 | 6 | 0 | 6 | 2 | 0 | 4 | 2 | 145 * | ||
ADH = atypical ductal hyperplasia, ALH = atypical lobular hyperplasia, cLCIS = classic lobular carcinoma in situ, DCIS = ductal carcinoma in situ, FEA = flat epithelial atypia, IBC = invasive breast carcinoma, mIC = microinvasive carcinoma.
*
Does not include one case of skin adnexal tumor and one case of spindle cell sarcoma.