Urticaria pigmentosa (present alone without systemic disease)
also dramatically clears or improves as adolescence approaches.
View page
Urticaria pigmentosa(also known as "Generalized eruption of cutaneous mastocytosis (childhood type)":616 ) is the most common form of cutaneous mastocytosis. It is a rare disease caused by excessive numbers of mast cells in the skin that produce hives or lesions on the skin when irritated.
View page
These skin lesions itch when stroked and may become
fluid-filled.
View page
Many patients with systemic mastocytosis also develop urticaria
pigmentosa.
View page
Mastocytoma and urticaria pigmentosa rarely if ever, develop
into systemic mastocytosis, and both spontaneously improve over
time.