- Urticaria pigmentosa
- Bullous impetigo
- Atopic dermatitis
This patient was diagnosed with urticaria pigmentosa, a form of cutaneous mastocytosis in which mast cells accumulate in the skin, causing the characteristic skin lesions seen here.
- Urticaria pigmentosa presents within the first week-to-months of life, though involution can occur in early childhood or last until puberty
- Bronchospasm, as well as flushing, diarrhea, and syncope can all occur
- Unlike adult forms of mastocytosis, there is rarely internal organ involvement in children
Pearls for Urgent Care Management and Considerations for Transfer
- There is no “cure,” per se, for urticaria pigmentosa, though antihistamines can relieve itching and flushing. Other treatments include:
- Topical corticosteroids
- Hydrocolloid dressings
- Fluocinolone acetenoide
- Parents of younger children should try to discourage scratching or rubbing of itchy skin, as doing so could spur a stronger reaction
Acknowledgment: Images courtesy of VisualDx.