Hyperpigmented cutaneous lesions that flare-up with scratching: Darier's sign

We present the case of a 40-year-old male with a past medical history of urticaria pigmentosa (UP) who presented for consultation to the Allergy clinic for an opinion of systemic mastocytosis. Previous workups included elevated serum tryptase level, UP on skin biopsy and an increased number of CD117...

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Detalles Bibliográficos
Autores principales: Cuervo-Pardo, Lyda B., Gonzalez-Estrada, Alexei, Ruiz, Sory J., Pien, Lily C.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2015
Materias:
Case Reports
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4370013/
https://www.ncbi.nlm.nih.gov/pubmed/25988075
http://dx.doi.org/10.1093/omcr/omv004
Descripción
Sumario:We present the case of a 40-year-old male with a past medical history of urticaria pigmentosa (UP) who presented for consultation to the Allergy clinic for an opinion of systemic mastocytosis. Previous workups included elevated serum tryptase level, UP on skin biopsy and an increased number of CD117-positive/CD25-positive mast cells on bone marrow biopsy. This case emphasizes the importance of physical findings such as Darier's sign in patients with hyperpigmented lesions, which virtually supports the diagnosis UP, raises the suspicion for systemic mastocytosis and guides further diagnostic evaluation. This case also outlines the management of systemic mastocytosis.

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