无脑儿的长臂：一种反驳。

The long arms of anencephaly: A refutation.

作者信息

Barr Mason

机构信息

Teratology Unit, Department of Pediatrics, Pathology, and Obstetrics, University of Michigan, Ann Arbor, Michigan 48109-5718, USA.

出版信息

Birth Defects Res A Clin Mol Teratol. 2009 Aug;85(8):710-4. doi: 10.1002/bdra.20591.

DOI:10.1002/bdra.20591

PMID:19441097

Abstract

A paper published in 1925 reported that human fetuses with anencephaly have arms that are longer than normal. This finding was accepted as true through the early 1990s. An analysis of body dimensions done in 1996 and enlarged and updated here shows that the arms of human fetuses with anencephaly are appropriate for gestational age and normal in proportion to their leg lengths. A subtle difference in measurement technique was found to explain the discordant findings.

摘要

1925年发表的一篇论文报道，患有无脑畸形的人类胎儿的手臂比正常胎儿长。这一发现直到20世纪90年代初都被认为是正确的。1996年进行的一项身体尺寸分析（此处进行了扩展和更新）表明，患有无脑畸形的人类胎儿的手臂长度与孕周相符，且与腿长比例正常。研究发现测量技术上的一个细微差异可以解释这些不一致的结果。