Granuloma faciale
GF; eosinophilic granuloma faciale; facial eosinophilic granuloma
Granuloma faciale is an uncommon chronic inflammatory dermatosis (a vasculitis variant) of the face — solitary or few violaceous to red-brown plaques with prominent follicular openings, most commonly on the cheek, forehead or nose of middle-aged men. It is a frequent diagnostic challenge in skin-oncology clinic, almost invariably mimicking BCC, sebaceous hyperplasia, AK, sarcoidosis, lupus or pseudolymphoma. Biopsy shows characteristic dermal infiltrate sparing a sub-epidermal Grenz zone, with eosinophils, neutrophils and leukocytoclastic vasculitis. Treatment is challenging; intralesional steroid, topical tacrolimus and pulsed-dye laser are first-line.
Clinical features
- Solitary or few violaceous, red-brown to dusky plaque on the face — cheek, forehead, nose, ear.
- Prominent follicular openings ("orange-peel" surface) — characteristic clinical clue.
- Slow growth over months to years; non-tender; non-pruritic.
- Median age 45–60; male predominance (~ 2:1); usually a Fitzpatrick I–III patient.
- Extrafacial granuloma faciale is rare and shares histological features with, and is considered part of a spectrum with, erythema elevatum diutinum.
Dermoscopy
- Yellow-brown structureless areas around follicular openings.
- Dilated follicular openings (white follicular plugs).
- Telangiectatic linear / dotted vessels — distinguishable from arborising vessels of BCC.
- Absence of pearly margin, blue-grey nests, leaf-like structures (against BCC).
Histology
- Dense polymorphous infiltrate in the dermis — eosinophils, neutrophils, plasma cells, lymphocytes.
- Grenz zone — narrow band of uninvolved papillary dermis immediately beneath the epidermis (characteristic).
- Leukocytoclastic vasculitis of dermal vessels with fibrinoid change.
- Older lesions — fibrosis and dermal hyalinisation.
- Differential — erythema elevatum diutinum (similar histology, different distribution), Jessner lymphocytic infiltrate, granuloma annulare, sarcoidosis, fixed drug eruption, lupus.
Management
- Treatment is challenging — no single highly effective therapy.
- First-line:
- Superpotent topical corticosteroid (clobetasol propionate).
- Topical tacrolimus 0.1% ointment.
- Intralesional triamcinolone 10–40 mg/mL every 4–6 weeks.
- Second-line — pulsed-dye laser (PDL 585/595 nm), Q-switched ruby/Nd:YAG laser, cryotherapy.
- Refractory disease — dapsone, hydroxychloroquine, colchicine, systemic steroid.
- Surgical excision occasionally for small recalcitrant lesions but recurrence common.
- Photoprotection.
- Long course is typical — counsel patients to expect months of treatment for partial response.
References
- Marcoval J et al. Granuloma faciale — clinicopathologic study of 11 cases. J Am Acad Dermatol; 2004.
- Akilov OE, Wig OR, Goldsmith LA. Granuloma faciale — diagnostic and management challenges. Skinmed; 2005.
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