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. 2013 Nov 18;2(4):186–195. doi: 10.1530/EC-13-0046

Table 3.

Diagnostic value (%) of the presence of CDC73 mutation and loss of parafibromin immunostaining in the diagnosis of parathyroid carcinomaa.

CDC73 mutationb Loss of parafibrominc
Sensitivity (95% CI) 41 (24–59) 50 (32–68)
Specificity (95% CI) 95 (77–99) 95 (77–92)
Positive predictive value (95% CI)d 4 (0–10) 5 (0–12)
Negative predictive value (95% CI)d 100 (98–100) 100 (98–100)
a

A series of 22 parathyroid adenomas previously characterized for CDC73 mutations and parafibromin immunostaining was used as a control (Cetani et al. (12)).

b

CDC73 mutational data were available in 32 patients.

c

Parafibromin immunostaining data were available for 34 patients.

d

Positive and negative predictive values are calculated given the estimated prevalence of parathyroid carcinoma at our Institution of 0.5% among patients with primary hyperparathyroidism.