DW Insights & Inquiries
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![Image for DWII of confluent and reticulated papillomatosis of Gougerot and Carteaud](http://images.ctfassets.net/1ny4yoiyrqia/7vzmIJqBjKUd33Qslt8Nk0/59745b4554b02a7f6650e031aa847800/AAD-DWII-Gougerot-Carteaud-r2.jpg?w=450&h=300)
Confluent and Reticulated Papillomatosis of Gougerot and Carteaud is usually seen in adolescents and young adults. The etiology of CARP remains to be determined, and further studies will judge its precise relationship to acanthosis nigricans.
![Card image for DWII of necrotizing infundibular crystalline folliculitis](http://images.ctfassets.net/1ny4yoiyrqia/62trKg5qBotiTglfDSZmy1/cec36df37196393bd3ba9cfac047180a/Folliculitis-r1.jpg?w=450&h=300)
Necrotizing infundibular (ostial) crystalline folliculitis is an underrecognized disorder characterized by folliculocentric waxy papules in the seborrheic areas of adult patients. An increasing number of cases are drug related.
![Image for DWII of palisaded encapsulated neuromas](http://images.ctfassets.net/1ny4yoiyrqia/4iNZF7YhQESZ3XklfTZkMS/692a957caa0516951f62a1426864864c/PEN-DWII-4.jpg?w=450&h=300)
PENs may present as solitary or multiple lesions. Multiple lesions presenting in childhood warrant consideration of Cowden syndrome and Multiple Endocrine Neoplasia Type 2B.
![Card image for DWII of bullous pemphigoid](http://images.ctfassets.net/1ny4yoiyrqia/773IwpDOpZ2MZvGqEtB991/50173887c392d3b3ba4a5f9cd457e78c/Bullous-pemphigoid-03-r1.jpg?w=450&h=300)
Case reports and retrospective studies have demonstrated dupilumab’s efficacy in treating bullous pemphigoid. Perhaps approval of dupilumab for bullous pemphigoid is on the horizon.
![Card image for DWII of xanthogranulomas](http://images.ctfassets.net/1ny4yoiyrqia/5ZfjBmAejEUnkUVVfCdBqZ/f4a5d0a528aa0ae169f9bfdebe0d526f/DWII-xanthogranulomas-r2.jpg?w=450&h=300)
Advances in genetics and molecular biology have identified pathways confirming the usefulness of targeted therapies in those patients with systemic juvenile xanthogranulomas harboring specific mutations.
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