Table 1 Age and radiological features of the study group
From: Intra-mammary lymph nodes, an overlooked breast cancer prognostic tool?
Variables | Benign IMLNs (N = 42) | Malignant IMLNs (N = 48) | P-value |
|---|---|---|---|
Age in years, mean ± SD | 46.7 ± 10.2 | 49.54 ± 10.1 | 0.19A |
Laterality, no. (%) | |||
Left | 24 (57.1%) | 21 (43.8%) | |
Right | 17 (40.5%) | 26 (54.2%) | 0.42C |
Bilateral | 1 (2.4%) | 1 (2.1%) | |
Tumor site, no. (%) | |||
Central | 6 (14.3%) | 7 (14.6%) | |
LIQ | 7 (16.7%) | 2 (4.2%) | 0.32C |
LOQ | 3 (7.1%) | 1 (2.1%) | |
Multicentric | 13 (31%) | 23 (8.9%) | |
UIQ | 4 (9.5%) | 4 (8.3%) | |
UOQ | 9 (21.4%) | 11 (22.9%) | |
No. of IMLNs in radiology, no. (%) | |||
0 | 9 (21.4%) | 17 (35.4%) | |
1 | 29 (69%) | 24 (50%) | |
2 | 1 (2.4%) | 5 (10.4%) | 0.14C |
3 | 3 (7.1%) | 2 (4.2%) | |
IMLN radiological diagnosis | |||
Definitive | 24 (57.1%) | 23 (47.9%) | |
Likely | 9 (21.4%) | 8 (16.7%) | 0.46C |
Not identified as IMLN | 5 (11.9%) | 7 (14.6%) | |
Not identified at all | 4 (9.5%) | 10 (20.9%) | |
IMLN radiological criteria | |||
Benign | 7 (16.7%) | 3 (6.3%) | |
Not identified | 4 (9.5%) | 10 (20.8%) | 0.13C |
Suspicious | 31 (73.8%) | 35 (72.9%) | |
IMLN site radiologically, no. (%) | |||
LIQ | 1 (2.4%) | 1 (2.1%) | |
LOQ | 1 (2.4%) | 5 (10.4%) | 0.319C |
UIQ | 6 (14.3%) | 4 (8.3%) | |
UIQ LOQ | 1 (2.4%) | 0 | |
UOQ | 27 (64.3%) | 27 (56.3%) | |
UOQ UIQ | 0 | 1 (2.1%) | |
UOQ LOQ | 1 (2.4%) | 0 | |
UOQ UIQ | 1 (2.4%) | 0 | |
IMLN site radiologically, no. | |||
UOQ | 29 | 28 | 0.93C |
Non-UOQ | 9 | 10 | |
IMLN in other breast | 4 (9.5%) | 2 (4.2%) | 0.277C |
Preoperative FNAB of IMLN | 9 (20.4%) | 10 (20.8%) | 0.51C |
FNAB of IMLN findings | |||
Benign | 2 (4.8%) | 0 | |
Inconclusive | 2 (4.8%) | 1 (2.1%) | 0.066C |
Suspicious | 5 (11.9%) | 6 (12.5%) | |
Metastatic | 0 | 3 (6.3%) | |
Axillary LN by ultrasound | |||
Non-specific | 6 (14.3%) | 2 (4.2%) | 0.095C |
Pathological | 36 (85.7%) | 46 (95.8%) | |