Review Of Literatures : Common Skin Disorder

1476 Words Sep 16th, 2016 6 Pages
CHAPTER I
REVIEW OF LITERATURES

Pityriasis alba is a common skin disorder in children and young adults. It is characterized by the presence of ill-defined, scaly, faintly erythematous patches. These lesions eventually subside, leaving hypopigmented areas that then slowly return to normal pigmentation. The term is derived from the words pityriasis (scaly) and alba (white). (Miazek et al., 2015).
Epidemiology:
Pityriasis alba is most common in children aged 3-16 years, with 90% of cases occurring in children younger than 12 years (In et al., 2009).
The incidence of pityriasis alba in United States reached up to 5% of children. (Kim and Rocky, 2010)
In Egypt a study included 8008 rural inhabitants of all ages and both sexes from a representative of three villages of Assiut Governorate investigating the prevalence of skin diseases in rural areas of Assiut Governorate, Upper Egypt reported that Eczema/dermatitis group had a rate of 19.82%, with pityriasis alba forming the majority (13.49%) (Abdel-Hafez et al., 2003).
Another study was done in South Sini included 2194 children of both genders, 18 years of age and younger, and in six different localities reported that Eczema or dermatitis were found in 25.8% of participants. Pityriasis alba occurred at a rate of 18.3% (Gamal et al., 2012).
A cross-sectional study was carried out in three randomly selected elementary schools representing different geographic areas in Ismailia City, and included 1697 students, aged 6-13 years.…
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