Table 2. Receptor status of primary invasive breast cancer, site of initial relapse and site biopsied.
| Case | Primary tumour | Relapse sites | Relapse biopsied site |
|---|---|---|---|
| 1 | ER+ PgR+ HER2− | ST, Sk | Sk |
| 2 | ER+ PgR+ HER2− | LN, Sk | LN |
| 3 | ER+ PgR− HER2+ | Br, Li, LN, Lu | LN |
| 4 | ER+ PgR+ HER2− | Bo, Lu | Lu |
| 5 | ER− PgR− HER2+ | Li, LN, Sk | LN |
| 6 | ER− PgR− HER2+ | LN | LN |
| 7 | ER−. PgR− HER2− | ST, Sk | Sk |
| 8 | ER+ PgR− HER2− | LN, ST | LN |
| 9 | ER+ PgR+ HER2− | Sk | Sk |
| 10 | ER+ PgR+ HER2− | Cw, Sk | Sk |
| 11 | ER+ PgR− HER2+ | Cw, Sk | Sk |
| 12 | ER+ PgR+ HER2− | Bo, Li, Sk | Sk |
| 13 | ER+ PgR+ HER2− | Bo, Li, LN | LN |
| 14 | ER+ PgR+ HER2− | Bo | Bo |
Abbreviations: Bo=bone; Cw=chest wall; ER=oestrogen receptor; Li=liver; LN=lymph node; Lu=lung; PgR=progesterone receptor; Sk=skin; ST=soft tissue.