Gout, Tophus - DermAtlas - Dermatology Image Atlas

Contributor

Rachel Abuav, MD

Diagnosis

gout tophus

Body Site

elbow arm

Age

74 years

Pigmentation

light

Organization

grouped, clustered

Color

white/hypo yellow

Morphology

nodule

Pattern

acral (centripetal - extremity predominant) symmetric

Comments

These changes are typical of gout and are confirmed by polaroscopy which reveals birefringent crystals.

Description

Large nodular aggregates of pale amphophilic material focally containing brown needle-shaped crystals are seen in the deep reticular dermis and subcutaneous fat. Aggregates are surrounded by histiocytes and multinucleated giant cells. The overlying reticular derpis, papillary dermis, and epidermis are unremarkable.

Image Added

9/30/2004 8:51:13

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Other Resources

PubMed Medline Plus Medscape

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