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Table 4 Diagnostic parameters for cancer

From: Ultrasound criteria for risk stratification of thyroid nodules in the previously iodine deficient area of Austria - a single centre, retrospective analysis

Cancer Sensitivity Specificity PPV NPV
Mild hypoechogenicity 36% 61% 26% 72%
Marked hypoechogenicity 42% 82% 46% 79%
Microlobulated/ irregular margins 55% 73% 43% 81%
Microcalcifications 30% 93% 62% 78%
Taller than wide 28% 88% 47% 77%
No thin halo 89% 30% 32% 88%