Pityriasis Alba Flashcards
1
Q
PA
A
Skin condition of hypopigmented macules in atopic patients
2
Q
patho
A
result of a mild eczema process that disrupts melanosome transfer from melanocytes to keratinocytes
3
Q
s/s
A
0.5-2cm hypopigment macules and patches with a fine scale, typical on the face, more apparent after UV exposure and in those with dark skin
4
Q
dermatopathology
A
hypomelanosis and mild inflammation
5
Q
ddx
A
PIH, pityriasis versicolor is smaller lesions and on the trunk, vitiligo is sharply demarcated and fully devoid of pigment, MF is more widespread
6
Q
treatment
A
UV protection, emollients BID, topical steroids, topical calcineurin inhibitors to decrease inflammation
