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Other Names:
Mastocytosis, Mastocytoma
Urticaria Pigmentosa

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Urticaria pigmentosa is a disease that is characterized by bumpy skin lesions and intense itching. Rubbing of these leisions results in formation of hives on the site.

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  • Definitive cause is unknown
  • Hereditary predisposition
  • Accumulation of excessive numbers of a type of inflammatory cells called mast cells in the skin.

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  • Brownish lesions on skin
  • Formation of hives or blisters when lesions are rubbed or scratched
  • Flushing of face
  • Diarrhea
  • Rapid heart rate
  • Headache and fainting spells

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Itching can be uncomfortable and distressing. Appearance of bumps and spots can make you self conscious. Bee stings can trigger urticaria pigmentosa. Urticaria pigmentosa may progress to the more serious systemic mastocytosis.

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What You Can Do

  • Antihistamines may relieve symptoms such as itching and flushing.
  • Cold compresses
  • Calamine lotion helps soothe the leisions.

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Urticaria Pigmentosa