胸部 きょうぶ だい動脈 どうみゃくじゃなかった
kyōbudaidōmyakujanakatta

Noun
Da Copula

The past negative form of 胸部大動脈

1. Wasn't a thoracic aortic dissection.; Wasn't a large chest artery.

Past/Perfective
Negative
Anatomy