An unusual and unsettling place for a worm
An unusual and unsettling place for a worm
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DOI：
10.1258/ijsa.2010.010029
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发表时间：
2010-07-01
影响因子：
1.4
通讯作者：
Taylor, C.
中科院分区：
文献类型：
--
作者：
Samuel, M. I.;Taylor, C.
一名56岁男性主诉尿频，每日排尿8次，伴有尿道刺激感和尿痛。检查未发现尿路感染或性传播感染的证据。3个月后，他再次就诊，仍主诉尿频和尿道刺激感加重。他带来一份尿液样本，其中含有一条长2毫米的小“虫”，经鉴定为毛蠓属（双翅目蝇类）的蛾蚋幼虫。毛蠓在有机污染的水中产卵，如污水厂、水槽排水管或腐烂的蔬菜和水果上。泌尿生殖道蝇蛆病可能是由于幼虫在尿道口附近孵化，并沿尿道向上迁移，从而导致尿道炎。在幼虫被识别后，开具了伊维菌素，6周后该男子的症状得到改善。
A 56-year-old man presented complaining of urinary frequency, passing urine eight times per day, urethral irritation and dysuria. Investigations showed no evidence of urinary tract infection or sexually transmitted infections. Three months later he presented, again complaining of increased urinary frequency and urethral irritation. He brought with him a urine specimen containing a small 'worm', 2 mm in length, identified as a drain fly (or moth fly) larva, of the genus Psychoda (dipterous flies). Psychoda lay eggs in organically polluted water such as sewage plants, sink drains or on decaying vegetables and fruits. Urogenital myiasis may arise from hatching of larvae near the urethral opening and ascending migration along the urethra with consequent urethritis. Following larval identification, ivermectin was prescribed and the man's symptoms improved after six weeks.