Table 4.
Results from further analyses of histologically positive, OSNA-negative lymph nodes
| Patient | LN no. | Histological type of primary tumor | CK19 expression of metastatic tumors in LNs by IHC | CK19 expression of primary tumors by IHC | Western blotting/CK19 protein | Metastasis in other LNs of the patient |
|---|---|---|---|---|---|---|
| L | 15 | por2 | Faint | Faint | − | − |
| 16 | Faint | − | ||||
| M | 17 | sig | Faint | Faint | − | + |
| 18 | Faint | − | ||||
| 19 | Faint | − | ||||
| 20 | Faint | − | ||||
| N | 21 | por2 | Positive | Not assessed | − | − |
| O | 22 | por2 | Positive | Not assessed | − | + |
| P | 23 | sig | Positive | Not assessed | − | + |
por2 non-solid type poorly differentiated adenocarcinoma, sig signet ring cell adenocarcinoma, IHC immunohistochemistry
+ CK19 protein is >0.1 ng/μl
− CK19 protein is <0.1 ng/μl