Wong J Y, Becker S N
Acta Cytol. 1982 Jul-Aug;26(4):484-7.
From 1971 through 1980, four Papanicolaou smears containing pinworm (Enterobius vermicularis) eggs were found among approximately 220,000 routine smears examined at the University of Texas Medical Branch at Galveston. The highest number of ova counted on one slide was 420. Typical light microscopic features of the eggs included elongated oval shapes with flattening of the ventral sides and double-contoured shells folded at one end. The background in three smears showed massive acute inflammation. A scanning electron microscope study of one case revealed that the ova had a relatively smooth surface with an invaginated area at one end.
1971年至1980年期间，在加尔维斯顿的德克萨斯大学医学分校检查的约22万份常规涂片样本中，发现了4份含有蛲虫卵（蠕形住肠线虫）的巴氏涂片。一张载玻片上计数到的虫卵数量最多为420个。虫卵典型的光学显微镜特征包括呈拉长的椭圆形，腹侧扁平，一端折叠的双层轮廓外壳。三份涂片的背景显示有大量急性炎症。对其中一例的扫描电子显微镜研究显示，虫卵表面相对光滑，一端有内陷区域。
