Clinical Diagnosis has a High Negative Predictive Value in Evaluation of Malignant Skin Lesions

Table 4

Positive predictive value of clinical diagnosis of malignant lesions and 95% confidence intervals based on anatomical site.

Clinical diagnosis	Head and neck	Trunk	Upper extremity	Lower extremity
SCC	11.32 (2.79–19.85); N = 20	—	16.67 (0.42–64.12); N = 1	18.18 (2.28–51.78); N = 2
BCC	51.06 (45.68–56.44); N = 183	37.50 (15.20–64.27); N = 7	50 (9.45–90.55); N = 2	0 (1.25–84.18); N = 1
Bowen	14.28 (0–40.19); N = 6	16.66 (0.42–64.12); N = 4	50 (9.45–90.55); N = 2	—
Malignant melanoma	0 (0–84.18); N = 1	4.35 (0.11–21.95); N = 1	11.76 (0–27.07); N = 2	5.88 (0.15–28.69); N = 1
Lentigo maligna	9.52 (0–22.07); N = 5	—	—	—
Kaposi’s sarcoma	—	—	—	8.33 (0–23.96); N = 1
Mycosis fungoides	10 (0–23.14); N = 3	9.78 (4.57–17.76); N = 10	7.89 (1.66–21.38); N = 3	9.43 (1.56–17.30); N = 6
Malignant adnexal tumors	63.88 (48.19–79.57); N = 27	—	—	—
Paget’s disease	—	100 (29.24–100); N = 3	—	—