Rheumatoid Neutrophilic Dermatosis, Rheumatoid Arthritis - DermAtlas

Contributor

Greg Hosler, MD, PhD

Diagnosis

rheumatoid neutrophilic dermatosis rheumatoid arthritis

Body Site

forearm

Age

49 years

Pigmentation

light

Organization

extensor surfaces

Color

red

Morphology

papule

Pattern

acral (centripetal - extremity predominant)

Comments

This is a great example of a rare case of rheumatoid neutrophilic dermatosis. This patient had severe rheumatoid arthritis and developed plaques and bulla over the forearms. Rheumatoid neutrophilic dermatosis is a rare manifestation of severe joint disease, as in this case. Histologically, this is one of the neutrophilic dermatoses along with Sweet syndrome, cellulitis, pyoderma gangrenosum and others. The bulla are often secondary, and not always seen. Distinction between these entities is virtually impossible without clinical history.

Description

The infiltrate consists almost exclusively of neutrophils. There is no evidence of vasculitis.

Image Added

2/7/2007 21:51:26

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Other Resources

PubMed Medline Plus Medscape

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