Grafton W D, Ball W N, Bairnsfather L E
LSU School of Medicine, Shreveport.
J La State Med Soc. 1994 Nov;146(11):495-7.
Pathologists are occasionally asked for medicolegal reasons to estimate the gestational age of an ectopic pregnancy based on morphologic findings. We evaluated the correlation between the gestational age and the maximal diameter of the resected fallopian tube, the average diameter of chorionic villi, the number of chorionic villi per square millimeter of the microscopic section, the number of degenerated villi per square millimeter, the number of syncytial knots per square millimeter, and the average number of layers of cytotrophoblastic cells covering the villi. There was a significant correlation between the diameter of the fallopian tube and the gestational age, with a correlation coefficient of 0.41 and a P value of .05. There was no significant correlation of the gestational age with any of the microscopic parameters measured. The findings indicate that an approximate estimation of the gestational age of tubal ectopic pregnancies may be made using the diameter of the resected fallopian tube.
出于法医学原因，病理学家偶尔会被要求根据形态学发现来估计异位妊娠的孕周。我们评估了孕周与切除的输卵管最大直径、绒毛膜绒毛平均直径、每平方毫米显微镜切片的绒毛膜绒毛数量、每平方毫米退化绒毛数量、每平方毫米合体结节数量以及覆盖绒毛的细胞滋养层细胞平均层数之间的相关性。输卵管直径与孕周之间存在显著相关性，相关系数为0.41，P值为0.05。孕周与所测量的任何微观参数均无显著相关性。研究结果表明，可利用切除的输卵管直径对输卵管异位妊娠的孕周进行大致估计。
