From: Preoperative axillary lymph node staging by ultrasound-guided cytology using a four-level sonographic score
Sensibility (%)
Specificity (%)
PPV (%)
NPV (%)
Echography*
68.4
94.1
86.7
84
Cytoblock
58.8
100
82.1
Echography* + Cytoblock
75.0
88.2
86.5