黑腹果蝇成虫寄生人体鼻腔1例

Adult of Drosophila melanogaster parasitized in human nasal cavity:a case report

1病例报告患者,女,81岁。于2014年6月因脑梗塞、肺内积水入院。患者同时有分泌性中耳炎,有高血压病史,并于2007年放置心脏支架。术前体检过程中发现其左侧鼻腔有异物,后经鼻腔镜取出部分炎症组织,送我教研室鉴定。在石蜡包埋的病例切片标本中含有3只果蝇成虫。虫体长约3mm,具有硕大的红色复眼。在石蜡切片制作过程中,虫体头部被不慎切断。虫体末端尖,背面具5节环纹,未见黑斑;虫体腹片有7节,足Ⅰ跗节基部未见性梳,

Summary We reported a case of adult Drosophila melanogaster parasitized in nasal cavity of a 81-year-old woman who was living in Xuancheng City, Anhui Province now. She was admitted for treatment of cerebral infarction and water accumulation in the lungs in 2014 June. The patient was also suffering from secretory otitis media, a history of hypertension and h, art stents were placed in 2007. A foreign body was found in the left nasal cavity during the preoperative examination process, and then the part of the inflammatory tissue was removed through the nasal endoscopy, and sent to our department for identification. There are three adults of Drosophila in paraffin-embedded biopsy specimens. The parasites length is approximately 3mm, with huge red compound eyes. The end of the body is tip, with 5 ring lines in back, has no dark spots. The abdomen of the parasites have seven sections. Tarsus of foot I have no sex comb on base, and they are male adult of Drosophila melanogaster after i- dentification. After a thorough reviewing of medical history, we knew the patient began to sneeze violently and frequently six years ago. But there was no clear or purulent nasal discharge flowing, therefore did not attract attention. After removing the parasites the sneezing symptoms were relieved, and had no abnormal symptoms in the follow-up 6 months.