Spider angioma
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spider angioma causes evaluation DermNet
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https://dermnetnz.org/topics/spider-telangiectasis
A spider angioma (also called spider nevus or spider telangiectasia) is a benign cluster of dilated superficial blood vessels.
- Appearance: a central red dot or small raised papule with fine red vessels radiating outward like spider legs.
- Test: pressing the central dot makes the surrounding vessels blanch; they refill quickly after pressure is released.
- Common sites: face, neck, upper chest, hands, and arms.
- Common settings: it can occur normally in children and during pregnancy. It may also be associated with estrogen exposure, sun exposure, and liver disease, particularly when lesions are numerous and accompanied by palmar erythema, jaundice, or nail changes. DermNet overview
- Management: a single lesion is harmless and needs no treatment. If cosmetically bothersome, vascular laser, intense pulsed light, electrocautery, or cryotherapy can be used, though recurrence or a small scar is possible.
- When to seek assessment: new multiple lesions, especially with fatigue, abdominal swelling, easy bruising, yellow eyes/skin, or heavy alcohol use, warrant a clinician review and possible liver evaluation.
In pregnancy, lesions often fade after delivery; in children, they may disappear over time. Andrews' Diseases of the Skin E-Book Clinical Dermatology, pp. 65-73.
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