Guevara B E K, Dayrit J F, Haddad V
Department of Dermatology, Southern Philippines Medical Center, Davao City, Philippines.
Department of Dermatology, Research Institute of Tropical Medicine, Muntinlupa, Metro Manila, Philippines.
Clin Exp Dermatol. 2017 Mar;42(2):182-184. doi: 10.1111/ced.13003. Epub 2017 Jan 2.
Cnidarian envenomations are common occurrences in the tropics that can affect holidaymakers. The cutaneous reactions are classified as immediate or delayed types. Delayed allergic reactions are persistently recurring dermatitis, which can occur within 1-4 weeks from the initial sting, and may last for several months. Hypertrophic scar-like or keloid-like reactions are rare, and are believed to be a type IV hypersensitivity reaction to sequestered antigens from stinging filaments. We report an unusual case of delayed allergic dermatitis with keloid-like presentation caused by Physalia utriculus.
刺胞动物蜇伤在热带地区很常见，会影响度假者。皮肤反应分为即时型或迟发型。迟发性过敏反应是持续复发的皮炎，可在初次蜇伤后1 - 4周内出现，并可能持续数月。肥厚性瘢痕样或瘢痕疙瘩样反应罕见，被认为是对刺丝中隔离抗原的IV型超敏反应。我们报告一例由僧帽水母引起的具有瘢痕疙瘩样表现的迟发性过敏性皮炎的罕见病例。
