From: SOD2 immunoexpression predicts lymph node metastasis in penile cancer
Palpable suspicious lymph node | Tumor depth | Perineural invasion | SOD2 expression (>50%) | Patients at risk | Patients with inguinal lymph node metastasis | |
---|---|---|---|---|---|---|
n | n | (%) | ||||
No (*1) | ≤5 mm | Absent | - | 9 | 0 | (0.0) |
 |  | Absent | + | 4 | 0 | (0.0) |
 |  | Present | - | 2 | 0 | (0.0) |
 |  | Present | + | 0 | NA | NA |
 | >5 mm | Absent | - | 15 | 2 | (13.3) |
 |  | Absent | + | 10 | 2 | (20.0) |
 |  | Present | - | 2 | 0 | (0.0) |
 |  | Present | + | 7 | 5 | (71.4) |
Yes (*2) | ≤5 mm | Absent | - | 2 | 0 | (0.0) |
 |  | Absent | + | 0 | NA | NA |
 |  | Present | - | 1 | 0 | (0.0) |
 |  | Present | + | 2 | 2 | (100.0) |
 | >5 mm | Absent | - | 19 | 7 | (36.8) |
 |  | Absent | + | 12 | 8 | (66.7) |
 |  | Present | - | 7 | 7 | (100.0) |
 |  | Present | + | 12 | 11 | (91.7) |
All cases (*3) | ≤5 mm | Absent | - | 11 | 0 | (0.0) |
 |  | Absent | + | 4 | 0 | (0.0) |
 |  | Present | - | 3 | 0 | (0.0) |
 |  | Present | + | 2 | 2 | (100.0) |
 | >5 mm | Absent | - | 34 | 9 | (26.5) |
 |  | Absent | + | 24 | 10 | (41.7) |
 |  | Present | - | 9 | 7 | (77.8) |
 |  | Present | + | 19 | 16 | (84.2) |