๐ ็ธฝ็ฎ้ ๏ฝ ๐ ่ฑๆๅๆ๏ผๆฌ็ฏ๏ผ ๏ฝ ๐ ๅฎๆด็ฟป่ญฏ ๏ฝ โญ ็ฒพ่ฏ็ญ่จ
INTRODUCTION
This chapter will cover several disorders of the skin vasculature, including livedo reticularis, flushing, and erythromelalgia, as well as vascular ectasias such as telangiectasias and venous lakes. Some of the diseases described here are important skin signs of systemic disease, while others are incidental findings. Additional disorders of blood vessels are covered elsewhere, e.g. infantile hemangiomas (Ch. 103), vascular malformations (Ch. 104), and vascular neoplasms and proliferations (Ch. 114).