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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.
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Q: What is Urticaria Pigmentosa?
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When does urticaria pigmentosa usually clear up?

Urticaria pigmentosa (present alone without systemic disease) also dramatically clears or improves as adolescence approaches.


What do patients with systemic mastocytosis often develop?

Many patients with systemic mastocytosis also develop urticaria pigmentosa.


What type of lesions are typical of urticaria pigmentosa?

These skin lesions itch when stroked and may become fluid-filled.


What are the chances that systemic mastocytosis will develop from mastocytoma?

Mastocytoma and urticaria pigmentosa rarely if ever, develop into systemic mastocytosis, and both spontaneously improve over time.


Urticaria pigmentosa?

DefinitionUrticaria pigmentosa is a skin disease that produces lesions and intense itching. If you rub the lesions, hives may develop.Alternative NamesMastocytosis; MastocytomaCauses, incidence, and risk factorsUrticaria pigmentosa is one of several forms of mastocytosis, which occurs where there are too many inflammatory cells (mast cells) in the skin.Urticaria pigmentosa is most often seen in children, but it can also occur in adults.SymptomsThe main symptom is brownish lesions on skin. Rubbing the skin sore causes a hive-like bump. Younger children may develop a fluid-filled blister if it is scratched.The face may also become flushed.In severe cases, the following symptoms may occur:DiarrheaFainting(uncommon)HeadacheRapid heartbeat (tachycardia)Signs and testsSkin biopsy to confirm an increase in the number of mast cellsUrine histamineTreatmentAntihistamines may relieve symptoms such as itching and flushing. Discuss the choice of antihistamine with your child's health care provider. Other medications may be recommended for symptoms of more severe and unusual forms of urticaria pigmentosa.Expectations (prognosis)Urticaria pigmentosa goes away by puberty in about half of the affected children. Symptoms usually get better in others as they grow into adulthood.In adults, urticaria pigmentosa may develop into a more serious condition called systemic mastocytosis.ComplicationsDiscomfort from itching, and possible self-consciousness about the "spots," are the primary complications. Other problems such as diarrhea and fainting are rare.Certain medications may trigger flares of urticaria pigmentosa. Discuss these with your doctor.Bee stings may also cause severe allergic reactions in some patients with urticaria pigmentosa. Your doctor may advise you to carry an injectable epinephrine kit (such as EpiPen or Twinject) to be used in case of a bee sting.Calling your health care providerCall for an appointment with your health care provider if your child has symptoms of urticaria pigmentosa.


What does idiopathic urticaria mean?

idopathic urticaria means cause of urticaria is unknown dr. vijay


When was Retinitis Pigmentosa International created?

Retinitis Pigmentosa International was created in 1973.


How many Americans have retinitis pigmentosa?

1 in 4,000 Americans have or get rentinitis pigmentosa


Who discovered Xeroderma Pigmentosa?

hi everyone!!!!1 who discovered xero derma pigmentosa??????/?


How will Retinitis Pigmentosa develop?

Read this, it will tell you everything http://www.answers.com/topic/retinitis-pigmentosa


What is the subterm for the main term urticaria?

The subterm for the main term of urticaria is........ acute


What gene is mutated in retinitis pigmentosa?

i think the x but check out retinitis pigmentosa site im sure i seen it on there