Livedo reticularis (English spelling)

Japanese: 網状皮斑(リベドー) - もうじょうひはん(リベドー)(英語表記)Livedo reticularis
Livedo reticularis (English spelling)
A general term for diseases that cause reticular erythema on the skin. It is most likely to occur on the limbs, especially the lower limbs. It is thought to occur when the lumen of the small arteries in the skin narrows, causing the small veins to expand, resulting in impaired blood circulation in the peripheral skin. It is classified into two types: cutis marmorata and livedo racemosa, with a type called reticular cutis in between. Cutis marmorata is commonly called "fire callus" and causes reddish-brown reticular spots resembling marble patterns to appear on areas that have been exposed to the heat of heaters such as stoves, foot warmers, and kotatsu in winter.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
皮膚に網目状の紅斑を生ずる病気の総称。主として四肢,とくに下肢に発生しやすい。皮膚の小動脈の内腔がせまくなり,小静脈が拡張し,皮膚末梢の血液循環障害が起こるために生ずると考えられている。大理石様皮膚cutis marmorataと分枝状皮斑livedo racemosaの2種類に分類され,その中間に細網状皮膚と呼ばれる種類がある。大理石様皮膚は俗に〈ひ(火)だこ〉と呼ばれるもので,冬にストーブ,あんか,こたつなどの暖房器具の温熱にさらされて温められていた部分に,大理石の紋のような網目状の赤褐色斑を生ずる。

出典 株式会社平凡社世界大百科事典 第2版について 情報

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