A Case of Extensive Pityriasis Alba

Area of Science:

• Dermatology
• Pediatric Dermatology

Background:

• Pityriasis alba (PA) is a frequent, benign skin condition primarily affecting children.
• Characterized by hypopigmented macules or patches, typically on the face.

Observation:

• Two uncommon variants of PA exist: a pigmenting type and an extensive type.
• Extensive PA is rare, with lesions often less scaly, more persistent, generalized, and symmetrical.
• Lesions in extensive PA are more commonly observed on the trunk than the face.

Findings:

• This report documents a pediatric case presenting with extensive pityriasis alba lesions.
• The observed extensive PA exhibited characteristics including generalized distribution and trunk predominance.

Implications:

• Highlights the rare extensive variant of pityriasis alba in pediatric dermatology.
• Emphasizes the importance of recognizing atypical presentations of common childhood skin conditions.
• Contributes to the understanding of the clinical spectrum of pityriasis alba.