要約

• Benign vascular lesions that typically appear during the first weeks of life as blue or pink macules or patches.
• May be associated with extracutaneous manifestations (e.g., high-output cardiac failure), raising suspicion of internal visceral involvement.
• First-line therapies include systemic beta-blockers (such as propranolol) and systemic corticosteroids.
• Adverse effects from prolonged, high-dose oral corticosteroids are common.