Summary of the anaplastic lymphoma kinase (ALK) fluorescence in situ hybridisation (FISH) and immunohistochemistry (IHC) results
| FISH NI | ALK FISH rearranged tumour cells % | Total | ||||
| <10 | 10–14 | 15–20 | >20 | |||
| Total | 7 | 388 | 12 | 13 | 127 | 547 |
| ALK IHC positive# | 2 (29) | 100 (26) | 8 (67) | 7 (54) | 120 (94) | 237 (43) |
| ALK IHC negative | 5 (71) | 288 (74) | 4 (33) | 6 (46) | 7 (6) | 310 (57) |
Data are presented as n or n (%). NI: not interpretable. #: expression in >10% of tumour cells.