V2EX photoallergy

Photoallergy

定义 Definition

光过敏;光致过敏反应:一种由光照(多为紫外线)触发的过敏性皮肤反应。常见机制是:某些物质(如药物、香料、防晒成分等)在光照下变成“致敏原”,引发免疫反应,出现瘙痒、红斑、丘疹或湿疹样皮疹。(该词也常用于医学语境中与 phototoxicity 作对比。)

发音 Pronunciation (IPA)

/fotoldi/

词源 Etymology

由 **photo-**(“光”,源自希腊语 *phōs/phōt-*,意为“光”)+ allergy(“过敏”,源自希腊语 allos“不同的”+ ergon“作用/反应”)构成,字面意思是“由光引起的过敏反应”。

例句 Examples

She developed photoallergy after using a new perfume in the sun.
她在阳光下用了新香水后出现了光过敏。

In patients with suspected photoallergy, patch testing combined with controlled UV exposure can help identify the triggering chemical.
对疑似光过敏的患者,可结合斑贴试验与可控紫外线照射来帮助找出诱发的化学物质。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Fitzpatrick’s Dermatology(皮肤科经典教材,常在光敏性疾病章节讨论 photoallergy)
  • Rook’s Textbook of Dermatology(系统区分光毒性反应与光过敏反应)
  • Harrison’s Principles of Internal Medicine(在药物不良反应与皮肤表现相关内容中可见该术语)
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