Vega J, Vega J M, Moneo I
Servicio de Dermatología, Hospital Universitario Río Hortega, Valladolid, Spain.
Actas Dermosifiliogr. 2011 Nov;102(9):658-67. doi: 10.1016/j.ad.2011.03.005. Epub 2011 May 4.
The pine processionary caterpillar is the larval form of the Thaumetopoea pityocampa moth. Mediterranean forests regularly suffer plagues of this insect, which has been moving north as a result of global warming. When the small urticating hairs that develop during the last 3 larval stages are shed and can become airborne. If they come in contact with skin, they can cause a variety of reactions, notably contact urticaria and papular rashes. Irritation can also occur if the hairs lodge in the mucosa of the conjunctiva or in the respiratory tract. Several cases of anaphylactic reactions have been reported in recent years. Mechanical (irritative) mechanisms may be involved in the pathogenesis of lesions, or immunoglobulin E-mediated allergic hypersensitivity reactions may be implicated when the process is rapid, recurrent, and progressively more severe.
松异舟蛾毛虫是松异舟蛾的幼虫形态。地中海森林经常遭受这种昆虫的侵害，由于全球变暖，它一直在向北移动。在幼虫最后三个阶段长出的微小刺毛会脱落并可能悬浮在空气中。如果它们接触到皮肤，会引起各种反应，尤其是接触性荨麻疹和丘疹性皮疹。如果这些毛发附着在结膜黏膜或呼吸道中，也会引起刺激。近年来已经报告了几例过敏反应病例。病变的发病机制可能涉及机械（刺激性）机制，或者当过程迅速、反复且逐渐加重时，可能涉及免疫球蛋白E介导的过敏性超敏反应。
