Table 2 Risk of malignancy according to the Sydney system classification.

From: Utility of Sydney system for reporting the neck lymphadenopathy underwent real-time ultrasound guided fine-needle aspiration

Sydney system/Final diagnosis

N (%)

Benign (%)

Malignant (%)

Inadequate/Insufficient

4 (2%)

4 (100%)

0/4 (0%)

Benign

137 (65%)

135 (98%)

2/137 (2%)

AUS/ALUS

9 (4%)

1 (11%)

8/9 (89%)

Suspicious

2 (1%)

0 (0%)

2/2 (100%)

Malignant

56 (27%)

0 (0%)

56/57 (98%)

  1. AUS/ALUS, Atypical (cells) Undetermined Significance/Atypical Lymphoid (cells) of Uncertain Significance.
Back to article page