Table 2 Surgical and pathologic characteristics
Entire sample (n = 42) | meso+, lat+ (n = 26) | meso+, lat− (n = 4) | meso−, lat+ (n = 5) | meso−, lat− (n = 7) | |
|---|---|---|---|---|---|
Surgical approach, n (%) | |||||
Abdominoperineal resection | 18 | 10 (38.5) | 2 (50.0) | 2 (40) | 4 (57.1) |
Anterior resection | 19 | 12 (46.2) | 1 (25.0) | 3 (60) | 3 (42.9) |
Hartmann’s procedure | 5 | 4 (15.4) | 1 (25.0) | ||
LLND dissection, n (%) | |||||
Unilateral | 28 | 13 (50.0) | 3 (75.0) | 5 (100) | 7 (100) |
Bilateral | 14 | 13 (50.0) | 1 (25.0) | ||
TNM stage, n (%) | |||||
0 | 1 (2.4) | 1 (14.3) | |||
I | 1 (2.4) | 1 (14.3) | |||
II | 4 (9.5) | 4 (57.1) | |||
III | 35 (83.3) | 25 (96.2) | 4 (100) | 5 (100) | 1 (14.3) |
IV | 1 (2.4) | 1 (3.8) | |||
Mesenteric lymph nodes, M (range) | |||||
No. of dissection per patient | 3 (0–23) | 17 (10–29) | 17.5 (12–20) | 16 (12–21) | 15 (11–25) |
No. of metastasis per patient | 16.5 (10–29) | 4.5 (1–23) | 5 (2–10) | 0 | 0 |
Lateral lymph nodes, M (range) | |||||
No. of dissection per each side | 7.5 (1–41) | 6 (1–41) | 15 (7–24) | 8 (3–13) | 8 (4–19) |
No. of metastasis per each side | 1 (0–10) | 1 (0–10) | 0 | 1 (1–2) | 0 |
Metastatic lymph node location, n (%) | |||||
Iliac artery region | 3 (60) | ||||
Obturator region | 2 (40) | ||||