Patients clinical stage and correlation with cytokeratin-positive (CK+) cell detection in bone marrow and peripheral blood in 114 patients
| 114 patients | No. of patients | CK+ in bone marrow (%) | CK+ in peripheral blood (%) |
|---|---|---|---|
| Stage I/II | 39 | 13 (33) | 3 (7.6) |
| Stage III | 36 | 24 (66) | 9 (25) |
| Stage IV | 39 | 30 (77) | 16 (41) |
| P = 0.001 | P = 0.017 |