BACKGROUND Pityriasis alba affects 1% of the world population and about 9.9% of the children in Brazil. However, its etiology remains uncertain. OBJECTIVE The objective of the present study was to evaluate the immunoexpression of factor XIIIa in dermal dendrocytes of skin lesions of pityriasis alba. METHOD Twenty patients with pityriasis alba and 20 patients with atopic dermatitis underwent...

Pityriasis alba (PA) is a common benign disease, characterized by hypopigmented macules or patches on the face, usually seen in children. However, two uncommon variants exist, a pigmenting type and an extensive type. Extensive PA is rare. The lesions tend to be less scaly, more persistent, more generalized, more symmetrical, and more frequently seen over the trunk and less so over the face. We ...

    Pityriasis Alba is an eruptive skin disorder which occurs as dry hypopigmented , scaly patches appears mainly in sun expose areas of skin, usually in children and young adolescents. Complete cure occurs within few years even without treatment. Few trace elements play essential roles as cofactors in pigmentary process of the skin. In this study by determination of zinc and copper levels in...

Background: No clinical clues to differentiate between extrinsic atopic dermatitis (eAD) and intrinsic atopic dermatitis (iAD). Aim: To compare presence of Pityriasis Alba (PA) in patients with extrinsic and intrinsic type of AD. Subjects & Methods: IL-4 and Ig-E were measured in 85 Patients’ serum with enzyme linked immune sorbent assay (ELISA). Forty three patients with (eAD) (group I) (n=43)...

Pityriasis alba is a skin disease, commonly seen in children and young adults. This case presents the ocular association of this disease in a 10 years old Pakistani male. Ocular features in this case were poliosis, tilted disc, high myopia and chorioretinal degeneration. Tilted discs and high myopia can be coincidental but poliosis and decreased pigment in retinal pigment epithelium are closely...

Pityriasis alba is a common hypomelanosis which is generally seen in young children. There is no specific known cause for this condition; however, studies to elucidate pathogenic factors seem to suggest that there are at least five separate causes for the condition. This list includes dermatitis, photosensitivity, fungal and bacterial pathogenesis, and post-inflammatory alterations. An evaluati...

IMPORTANCE Recognition of different clinical presentations of viral and virally triggered ("paraviral") exanthems is necessary for patients to be appropriately diagnosed and counseled. OBSERVATIONS Nine children presented with eruptions of hypopigmented macules following coryzal symptoms. Other diagnostic considerations, such as pityriasis alba, pityriasis versicolor, and progressive macular ...

The identification of one or several hypochromic patches (HP) on the skin is a key stage in the diagnosis of leprosy on dark skin. However, HP are often caused by other disorder than leprosy. A study to determine the prevalence and causes of HP among children was carried out in a rural area of Mali in November 2001. All children under 15 years of age in two villages in an endemic area were scre...