Spider nevus

A benign cutaneous vascular lesion consisting of a central dilated arteriole with radiating telangiectatic capillaries in an arachniform pattern, typically located in superior vena cava distributions and associated with hyperestrogenic states.

Causes

• Hormonal causes

  • Pregnancy

  • Puberty

  • Oral contraceptives

  • Hormone replacement therapy

• Liver-related causes

  • Liver failure

  • Cirrhosis

  • Portal hypertension

• Skin trauma

• Sun exposure

• Thyroid disorders

• Rheumatoid arthritis

• Physiological causes: Healthy individuals (especially children and pregnant women)