Pigmenting pityriasis alba
dc.contributor.author | Du Toit M.J. | |
dc.contributor.author | Jordaan H.F. | |
dc.date.accessioned | 2011-05-15T16:17:36Z | |
dc.date.available | 2011-05-15T16:17:36Z | |
dc.date.issued | 1993 | |
dc.description.abstract | We conducted a prospective study of 20 patients with pigmenting pityriasis alba (PPA) over a period of two years. Characteristic morphology revealed a central zone of bluish hyperpigmentation surrounded by a hypopigmented, slightly scaly halo of variable width. All patients displayed lesions on the face. Concomitant extrafacial involvement was uncommon. A significant finding was an associated dermatophyte infection in 13 patients (65%). These patients all received griseofulvin 10 mg/kg/day for eight weeks, resulting in the resolution of PPA in seven within 4 to 20 weeks. These were also treated with 1% hydrocortisone. Biopsy specimens from two patients showed similar features, namely, a subacute dermatitis with variable pigment incontinence. Immunohistochemical labeling revealed a preponderance of T lymphocytes. Pigmenting pityriasis alba seems to be a variant of classic pityriasis alba showing a strong association with dermatophyte infection, especially tinea capitis. It may be related to lichenoid melanodermatitis. | |
dc.description.version | Article | |
dc.identifier.citation | Pediatric Dermatology | |
dc.identifier.citation | 10 | |
dc.identifier.citation | 1 | |
dc.identifier.issn | 07368046 | |
dc.identifier.uri | http://hdl.handle.net/10019.1/14291 | |
dc.subject | antifungal agent | |
dc.subject | griseofulvin | |
dc.subject | hydrocortisone | |
dc.subject | pigment | |
dc.subject | adolescent | |
dc.subject | adult | |
dc.subject | article | |
dc.subject | child | |
dc.subject | clinical article | |
dc.subject | clinical feature | |
dc.subject | dermatitis | |
dc.subject | dermatomycosis | |
dc.subject | dermatophyte | |
dc.subject | disease association | |
dc.subject | erythematosquamous skin disease | |
dc.subject | face | |
dc.subject | female | |
dc.subject | human | |
dc.subject | human tissue | |
dc.subject | hyperpigmentation | |
dc.subject | hypopigmentation | |
dc.subject | immunohistochemistry | |
dc.subject | incontinentia pigmenti | |
dc.subject | male | |
dc.subject | morphology | |
dc.subject | preschool child | |
dc.subject | prospective study | |
dc.subject | school child | |
dc.subject | skin biopsy | |
dc.subject | skin pigmentation | |
dc.subject | t lymphocyte | |
dc.subject | tinea capitis | |
dc.subject | Adolescent | |
dc.subject | Adult | |
dc.subject | Child | |
dc.subject | Child, Preschool | |
dc.subject | Dermatitis, Atopic | |
dc.subject | Dermatomycoses | |
dc.subject | Female | |
dc.subject | Follow-Up Studies | |
dc.subject | Griseofulvin | |
dc.subject | Human | |
dc.subject | Hydrocortisone, Topical | |
dc.subject | Immunoglobulin E | |
dc.subject | Male | |
dc.subject | Pigmentation Disorders | |
dc.subject | Pityriasis | |
dc.subject | Prospective Studies | |
dc.subject | Skin | |
dc.title | Pigmenting pityriasis alba | |
dc.type | Article |