Hodges D C, Harker L A, Schermer S J
Anthropology Program, Iowa State University, Ames 50011.
Am J Phys Anthropol. 1990 Sep;83(1):77-81. doi: 10.1002/ajpa.1330830109.
A case of atresia of the external acoustic meatus is presented from a prehistoric Late Woodland site in Iowa. The affected individual was a female aged 30 to 40 years. The left temporal bone displayed a thin bony plate occluding the external acoustic canal. No evidence of middle ear or inner ear malformation was observed on the axial tomographs, although the external canal was shortened. The individual is diagnosed as having a mild case of congenital atresia. The report extends the geographical and temporal distributions of this archaeologically rare condition.
本文介绍了一例来自爱荷华州史前晚期林地遗址的外耳道闭锁病例。受影响个体为一名30至40岁的女性。左侧颞骨显示有一块薄骨板阻塞外耳道。尽管外耳道缩短，但轴向断层扫描未发现中耳或内耳畸形的证据。该个体被诊断为轻度先天性闭锁病例。本报告扩展了这种考古学上罕见病症的地理和时间分布范围。
