Psoriasis, Guttate - DermAtlas - Dermatology Image Atlas

Contributor

Greg Hosler, MD, PhD

Diagnosis

psoriasis, guttate

Body Site

trunk arm leg

Age

40 years

Pigmentation

light

Organization

scattered

Color

brown

Morphology

papulosquamous (bump, scale)

Pattern

central (centrifugal - trunk predominant)

Comments

This 40 year old female developed a papulosquamous eruption beginning on her trunk and spreading to all four extremities. She recently had a streptococcal infection, treated with antibiotics. This is a classic history and histology for guttate psoriasis. The histologic (and clinical) differential diagnosis often includes pityriasis rosea. Helpful features of psoriasis are the presence of neutrophilic aggregates in the superficial epidermis and foci typical for psoriasis vulgaris.

Description

The epidermis is acanthotic with distinctive parakeratotic mounds, resembling those of pityriasis rosea. A mild inflammatory infiltrate is present around superficial vessels.

Image Added

9/2/2008 22:08:48

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Other Resources

PubMed Medline Plus Medscape

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