noun
indentation; concavity; recessus; vallecula
Medical term for a depressed or concave area in anatomy, such as a recess or vallecula. Used in clinical descriptions.
CT画像で胃の陥凹が認められた。
An indentation of the stomach was observed on the CT image.
この陥凹は解剖学的に重要な構造です。
This recess is an anatomically important structure.