- Children <3yo
- Red to brown 2-5mm papules on head/neck first, sometimes rest of body
- Spontaneous resolution over months/years
- Pathology
- Well-circumscribed dermal infiltrate of large histiocytes (non-lipid), eosinophilic cytoplasm, intracytoplasmic comma bodies (Eletron Microscopy)
- Factor XIIIa, CD68 positive; CD1a, S100 negative
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