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Table 2 Diagnostic index of ultrasound-guided fine-needle aspiration (US-FNA) for 41 retrojugular lymph nodes

From: Ultrasound-guided fine-needle aspiration for retrojugular lymph nodes in the neck

Items Inclusion of inadequate cytology into benign category (%) Inclusion of inadequate cytology into malignant category (%)
Sensitivity 18/26(69.2) 24/26(92.3)
Specificity 15/15(100) 15/15(100)
PPV 18/18(100) 24/24(100)
NPV 15/23(65.2) 15/17(88.2)
Accuracy 33/41(80.5) 39/41(95.1)
False positive rate 0/15(0) 0/15(0)
False negative rate 8/26(30.8) 2/26(7.7)
  1. NPV negative predictive value, PPV positive predictive value.