Merck Manual

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Urticaria Pigmentosa
Urticaria Pigmentosa
Urticaria Pigmentosa

In mastocytosis, small reddish brown spots or bumps (called urticaria pigmentosa) may form on the skin.

By permission of the publisher. From Joe E, Soter N. In Current Dermatologic Diagnosis and Treatment, edited by I Freedberg, IM Freedberg, and MR Sanchez. Philadelphia, Current Medicine, 2001.

In these topics
Mastocytosis