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Table 5 Cytohistological discordances in primary surgery group

From: Ultrasound-guided fine needle aspiration cytology in staging clinically node-negative invasive breast cancer

Histological findings

n (%)

FNAC

 Insufficient for diagnose

2 (14.3%)

 Negative (false negative)

12 (85.7%)

 Positive (false positive)

0%

Number of positive nodes

 1 lymph node

11 (78.5%)

 2 lymph nodes

2 (14.3%)

 3 lymph nodes

1 (7.2%)

Size of nodal metastasis

 Not documented

6 (42.8%)

 Micrometastasis (0.2 to 2 mm)

3 (21.4%)

Macrometastasis

 2 to 4 mm

4 (28.6%)

 >4 mm

1 (7.2%)

Pathological stage grouping

 IB (pT1cN1mi)

1 (7.2%)

 IIA (pT1cN1a)

5 (35.7%)

 IIB (pT2N1a et pT2N1b)

8 (57.1%)

Total cytohistological discordances

14 (100%)