Dots Red These are due to the tips of the dermal vascular loops in the papillary dermis. They are arranged in a serpiginous pattern in clear cell acanthoma. The pattern in psoriasis. Bowen's disease and inflamed skin can look very similar and clinical features may be better in separating out these conditions.
Inflamed skin
CCA Red dots in a serpiginous pattern.
Psoriasis Regularly distributed red dots with some surface scale
L simplex/Prurigo nodules The red dot vessels here can look similar to a clear cell acanthoma.
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