Table 2 Twelve cases with 13 major discrepancies
Case ID | Diagnosis | Outside lab antibody | Laboratory | ER NEG/POS (%)a | PR NEG/POS (%)a | ||
|---|---|---|---|---|---|---|---|
Outside | In-house | Outside | In-house | ||||
1 | IDC | Unknown | International | NEG (< 1) | NEG (0) | NEG (< 1) | POS (1) |
2 | IDC | ER-monoclonal mouse antibody, clone ID5-α PR-monoclonal mouse antibody, clone PgR 636 | Reference | NEG (0) | POS (3) | NEG (0) | NEG (0) |
3 | ILC | ER-GF11, Leica PR-1294, DAKO | Community | NEG (0) | NEG (< 1) | NEG (0) | POS (11) |
4 | IDC | ER-SP1 monoclonal, Ventana PR-1E2 monoclonal, Ventana | Community | NEG (0) | NEG (0) | NEG (0) | POS (1) |
5 | IDC | ER-SP1 monoclonal, Ventana PR-1E2 monoclonal, Ventana | Community | NEG (0) | POS (1) | NEG (0) | NEG (0) |
6 | IDC | ER-SP1 monoclonal, Ventana PR-1E2 monoclonal, Ventana | Community | NEG (< 1) | NEG (0) | NEG (< 1) | POS (5) |
7 | IDC | Unknown | Reference | NEG (< 1) | POS (2) | NEG (0) | NEG (0) |
8 | IDC | ER-SP1 monoclonal PR-1E2 monoclonal | Community | NEG (0) | NEG (0) | NEG (0) | POS (2) |
9b | IDC | ER-SP1 monoclonal PR-1E2 monoclonal | Reference | NEG (< 1) | POS (2) | NEG (< 1) | POS (5) |
10 | IDC | ER-Monoclonal 6F11 PR-monoclonal mouse antibody, clone PgR 636 | Community | NEG (< 1) | POS (15) | NEG (< 1) | NEG (< 1) |
11 | IDC | ER-SP1 monoclonal PR-1E2 monoclonal | Community | NEG (0) | NEG (0) | NEG (0) | POS (5) |
12 | IDC | Unknown | International | NEG (< 1) | NEG (0) | NEG (< 1) | POS (10) |