Vitiligo

(B)

Pityriasis alba

(A)

Histopathological changes

17 (60.71%)

2 (7.14%)

5 (17.86%)

32 (84.21%)

4 (10.52%)

2 (5.26%)

Epidermal changes Acanthosis

Basal liquefaction

Epidermotropism

14 (50%)

10 (35.71%)

4 (14.29%)

20 (52.63%)

12 (31.58%)

6 (15.79%)

Inflammatory reaction

Mild

Moderate

Sever

7 (25%)

19 (67.86%)

0%

2 (7.14%)

13 (34.21%)

23 (60.53%)

2 (5.26%)

0%

Basal melanin

Focal decrease

Partial all field decrease

Normal melanin

No basal melanin

3 (10.71%)

2 (5.26%)

Melanophages

8 (28.57%)

20 (71.43%)

0%

11 (28.95%)

24 (63.16 %)

3 (7.89%)

Melanin in Fontana

Focal decrease

Partial decrease

Normal melanin