Verruga Filiforme _hot_ May 2026

A single, thin, digitate papule projecting above the skin surface, often described as “a tiny tree trunk or miniature stalagmite.” 4. Differential Diagnosis Filiform warts are frequently misdiagnosed due to their unusual morphology. Important differentials include:

Verruga filiforme is a distinct clinical variant of the common wart (verruca vulgaris), caused by human papillomavirus (HPV). Its name derives from the Latin filum (thread) and forma (shape), describing its characteristic finger-like or thread-like projections. These warts are benign epithelial proliferations but are notable for their rapid growth, unusual morphology, and predilection for specific facial sites (lips, eyelids, nose, and perioral region). verruga filiforme

| Modality | Details | Efficacy | Side effects / Notes | |----------|---------|----------|----------------------| | (liquid nitrogen) | 1–3 freeze-thaw cycles, 5–10 sec application. Repeat q2–3 weeks. | Moderate–good; 60–80% clearance after 3–4 sessions. | Pain, blistering, hypopigmentation (especially in dark skin). Risk of eyelid edema. | | Electrodesiccation & curettage | Local anesthetic; scrape + light cautery. | High (>85%) for single lesions. | Scarring potential; not ideal for eyelid margin. | | Snip excision (scissors) | Shave excision at base with fine iris scissors. | Excellent for pedunculated lesions. | Minimal scar if done precisely; recurrence if base not destroyed. | | Topical salicylic acid (17%) + lactic acid | OTC preparations; nightly application under occlusion. | Low–moderate (slow, often ineffective on thick facial skin). | Irritant contact dermatitis. | | Topical retinoids (tretinoin 0.05% cream) | Off-label; nightly. | Moderate; works via desmosome disruption. | Erythema, peeling. Better for flat warts. | | Imiquimod 5% cream | 3x/week, up to 16 weeks. | Moderate (better in immunosuppressed). | Local inflammation, flu-like symptoms (rare). | | Pulsed dye laser (585/595 nm) | Targets hemoglobin in dilated capillaries. | Good (70–90%). | Expensive; requires multiple sessions. | | Cantharidin (blister beetle extract) | Applied in clinic, washed off after 4–6h. | Moderate; not FDA-approved for facial use. | Painful blister; risk of post-inflammatory hyperpigmentation. | | Surgical excision (full-thickness) | Rarely indicated. | High cure rate. | Definite scar; reserved for refractory cases. | A single, thin, digitate papule projecting above the