Einer H, Ellegård E
Department of Otorhinolaryngology, Kungsbacka Hospital, Kungsbacka, Sweden.
J Laryngol Otol. 2011 Jul;125(7):745-6. doi: 10.1017/S002221511100096X.
We report a case of an Oestrus ovis larva which developed into the second larval stage within a healthy, immunocompetent human, and we review the relevant literature.
Clinical case report and Pubmed search of reports of human nasal myiasis due to Oestrus ovis, especially those describing the larval stage.
Humans are not normally hosts of the sheep nasal bot fly, but infestations by its larvae have been described. The eye is the most common site, but larvae have occasionally been found in the human nose. Transformation of larvae into the second and third stages, within the human nose, is even more uncommon.
To the best of our knowledge, we report the first Swedish case, and the third case world-wide, of Oestrus ovis larval development beyond the first larval stage, within an immunocompetent, healthy human.
我们报告一例羊狂蝇幼虫在健康、免疫功能正常的人体内发育至第二幼虫期的病例，并对相关文献进行综述。
临床病例报告及通过PubMed检索羊狂蝇致人类鼻蝇蛆病的报告，尤其关注描述幼虫期的报告。
人类通常不是羊鼻狂蝇的宿主，但已有其幼虫侵袭人类的描述。眼部是最常见的部位，但幼虫偶尔也会在人类鼻腔中被发现。幼虫在人类鼻腔内发育至第二和第三阶段的情况更为罕见。
据我们所知，我们报告了瑞典首例、全球第三例羊狂蝇幼虫在免疫功能正常的健康人体内发育至第一幼虫期之后阶段的病例。
