Generalized granuloma annulare

Diagnosis: Generalized granuloma annulare

Generalized granuloma annulare

Clinical Presentation

Generalized granuloma annulare

Clinical History

Submitted by Ellie Goulding MD. Originally posted January 23, 2017.

Treatment

See case discussion.

Differential Diagnosis

• Tinea corporis • Annular lichen planus • Sarcoidosis • Necrobiosis lipoidica • Morphea • Erythema annulare centrifugum • Mycosis fungoides

Key Learnings

• Classic appearance: flesh-colored to erythematous annular plaques with a raised border and depressed center • Localized form is most common (75%) — often on dorsal hands/feet • Generalized form: consider screening for diabetes mellitus (controversial association) • Palisading granulomatous inflammation with central mucin and collagen degeneration on histology • Self-limited in ~50% of localized cases within 2 years • Dermoscopy: structureless orange-yellow areas ("setting sun" pattern)

Tags: generalized, granuloma, annulare, ellie goulding md