Annular Elastolytic Giant Cell Granuloma

Overview

Annular elastolytic giant cell granuloma (AEGCG) is an uncommon granulomatous skin condition characterized by annular (ring-shaped) plaques on sun-exposed skin. Histologically, it is defined by the destruction of elastic fibers by multinucleated giant cells. It is considered by some authorities to be a variant of granuloma annulare, though it has distinct clinical and histological features. It primarily affects middle-aged to older adults.

Key Symptoms

Annular (ring-shaped) plaques with raised borders and a slightly atrophic or depressed center
Skin-colored to erythematous or hyperpigmented appearance
Slowly expanding rings that may reach several centimeters in diameter
Typically found on sun-exposed areas: face, neck, dorsal hands, and forearms
Usually asymptomatic, though mild itching may occur
Multiple lesions may be present simultaneously

Affected Areas

Face, Neck, Dorsal hands, Forearms, Other sun-exposed areas

Care Instructions

See a dermatologist for evaluation and biopsy to confirm the diagnosis.
Sun protection is recommended since the condition tends to occur on sun-damaged skin.
Topical or intralesional corticosteroids may be tried for symptomatic or cosmetically bothersome lesions.
Hydroxychloroquine or dapsone has been used in some cases with variable success.
The condition may follow a chronic, relapsing course over years.
Spontaneous resolution can occur but is unpredictable.

Medical Disclaimer: This information is for educational purposes only and does not replace professional medical advice. Always consult a qualified dermatologist for diagnosis and treatment.

Prevalence: Rare; predominantly affects adults over age 40