Cat‐Ear‐Line: A Sonographic Sign of Cortical Development?

N. Matsuzawa,L. Poon,M. Machida,Takako Nakamura,Kohtaro Uenishi,Y. Wah,S. Moungmaithong,A. Itakura,H. Chiyo,R. Pooh

Published 2022 in Journal of ultrasound in medicine

ABSTRACT

Diagonal echogenic lines outside the lateral ventricle have often been observed in the anterior coronal planes of the normal fetal brain by neurosonography. We have observed abnormal shapes of these echogenic lines in cases of malformation of cortical development (MCD). We named the ultrasound finding “cat‐ear‐line” (CEL). This study aimed to examine how and when CEL develops in normal cases compared with MCD cases.

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