Lichen striatus colocalized with a Spitz nevus.

Area of Science:

• Dermatology
• Pediatric Dermatology
• Pathology

Background:

• Spitz nevi are benign melanocytic tumors often seen in children.
• Lichen striatus is an inflammatory dermatosis typically presenting as linear papules.
• Co-occurrence of these distinct dermatoses is exceptionally rare.

Purpose of the Study:

• To report a unique case of co-localized Spitz nevus and lichen striatus in a pediatric patient.
• To explore the potential association between Spitz nevi and lichen striatus.
• To contribute to the understanding of rare dermatological presentations.

Main Methods:

• Clinical presentation of a 7-year-old girl with distinct skin lesions.
• Histopathological examination of the skin lesions.
• Review of existing literature for similar co-occurrences.

Main Results:

• Histopathology confirmed the presence of both Spitz nevus and lichen striatus.
• The Spitz nevus was excised via punch biopsy.
• The lichen striatus component resolved spontaneously post-biopsy.

Conclusions:

• This case represents the first reported instance of co-localization of Spitz nevus and lichen striatus.
• The immunogenicity of Spitz nevi may play a role in the pathogenesis of lichen striatus.
• Further research is warranted to elucidate the potential relationship between these conditions.