Urticaria Pigmentosa/Maculopapular Cutaneous Mastocytosis, Polymorphic Variant

**Semantic type:** Neoplastic Process

**Definition:** A variant of urticaria pigmentosa/maculopapular cutaneous mastocytosis characterized by the presence of larger skin lesions of variable size compared to the monomorphic variant.

**Synonyms:** - Urticaria Pigmentosa/Maculopapular Cutaneous Mastocytosis, Polymorphic