Shankar Mahesh Kumar, Shet Satish, Gupta Piyush, Nadgir Shobha Druva
KIMS, Hubli, Karnataka State, India.
Nepal J Ophthalmol. 2014 Jul-Dec;6(2):224-6. doi: 10.3126/nepjoph.v6i2.117112.
Dirofilariasis is a rare parasitic infestation in humans.
A 33-year-old female from the coastal area presented with a swelling over the right lacrimal sac area. It was clinically diagnosed as a lacrimal abscess and was incised under local anaesthesia. A live coiled worm was found and removed along with the cyst.
The worm looked like a thin white thread measuring 101 mm in length. On microscopic examination, the anterior end was slightly tapered and had a rounded head. The H & E stained section of the worm revealed longitudinal ridges with transverse striations on the cuticle. Based on these findings,the worm was identified as dirofilaria repens.
Dirofilariasis should be considered in the differential diagnosis of orbital region swelling and conjunctivitis. Surgical removal of the worm not only establishes the diagnosis but provides a definitive cure.
丝虫病是一种在人类中罕见的寄生虫感染。
一名来自沿海地区的33岁女性，右泪囊区出现肿胀。临床诊断为泪囊脓肿，并在局部麻醉下切开。发现一条活的蟠曲蠕虫，并与囊肿一起切除。
该蠕虫看起来像一根细白线，长101毫米。显微镜检查显示，前端略呈锥形，头部圆形。蠕虫的苏木精-伊红染色切片显示角质层有纵向嵴和横向条纹。基于这些发现，该蠕虫被鉴定为匐行恶丝虫。
在眼眶区域肿胀和结膜炎的鉴别诊断中应考虑丝虫病。手术切除蠕虫不仅可以确诊，还能提供确切的治愈方法。
