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Urticaria - Symptom

Nombres alternativos

Ronchas

Síntomas:

  • Prurito
  • Inflamación de la superficie de la piel con verdugones o ronchas de color similar al de la piel o rojizo con bordes claramente definidos

Las ronchas se pueden agrandar, diseminar y unir formando áreas más grandes de piel plana y elevada.

También pueden cambiar de forma, desaparecer y reaparecer al cabo de minutos u horas. Una roncha verdadera aparece y desaparece. Cuando se presiona el centro de una, ésta se torna blanca. Esto se denomina palidez.

Pruebas y exámenes:

El médico puede decir si usted tiene urticaria observando la piel.

Si usted tiene antecedentes de una alergia, entonces el diagnóstico es aun más obvio.

Ocasionalmente, se hacen exámenes de sangre o de la piel para confirmar que usted tuvo una reacción alérgica y evaluar la sustancia que causó dicha respuesta alérgica. Una biopsia de piel puede confirmar el diagnóstico.

  • Reviewed last on: 5/13/2011
  • Kevin Berman, MD, PhD, Associate, Atlanta Center for Dermatologic Disease, Atlanta, GA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

Referencias

Habif TP, ed. Clinical Dermatology. 5th ed. Philadelphia, Pa: Mosby Elsevier; 2009.

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