Calderón H Perla, Rojas E Camilo, Apt B Werner, Castillo O Douglas
Servicio de Dermatología, Hospital Clínico, Universidad de Chile, Santiago, Chile.
Departamento de Dermatología, Facultad de Medicina, Universidad de Chile, Santiago, Chile.
Rev Med Chil. 2017 Feb;145(2):250-254. doi: 10.4067/S0034-98872017000200013.
Myiasis is an infestation of tissues and organs of humans and animals by Diptera larvae (flies, horseflies, mosquitoes). They are located at different body sites, and classified clinically as cutaneous, visceral and cavitary. We report a 26-year-old woman with a history of seborrheic dermatitis and recent trip to Brazil. She presented with a seven days history of suppurating wounds in the parieto-occipital area of the scalp. At physical examination we found three ulcers of approximately 1.5 cm each, with multiple mobile larvae inside. The obtained larvae were analyzed, identifying Cochliomyia hominivorax larvae at L2 and L3 stages. The patient was managed successfully with oral antimicrobials and local cleansing. The screwworm Cochliomyia hominivorax in our country is rare. Known risk factors are wounds, poor personal hygiene, extreme ages, psychiatric disorders, presence of specific dermatosis such as psoriasis and seborrheic dermatitis, among others.
蝇蛆病是双翅目幼虫（苍蝇、马蝇、蚊子）对人类和动物组织及器官的侵袭。它们位于身体不同部位，临床上分为皮肤型、内脏型和腔道型。我们报告一名26岁女性，有脂溢性皮炎病史且近期去过巴西。她头皮顶枕部有7天的化脓性伤口病史。体格检查时，我们发现三个约1.5厘米的溃疡，内部有多个可活动的幼虫。对获取的幼虫进行分析，鉴定为处于L2和L3阶段的嗜人瘤蝇幼虫。患者通过口服抗菌药物和局部清洁成功治愈。我国嗜人瘤蝇这种螺旋锥蝇很罕见。已知的危险因素包括伤口、个人卫生差、极端年龄、精神疾病、存在特异性皮肤病如银屑病和脂溢性皮炎等。
