azygos lobe of right lung

az·'y·gos lobe of right lung

a small accessory lobe sometimes formed superior to the hilum of the right lung; separated from the rest of the upper lobe by a deep groove lodging the azygos vein.

az·y·gos lobe of right lung

(az'i-gŏs lōb rīt lŭng)
A small accessory lobe sometimes formed superior to the hilum of the right lung; separated from the rest of the upper lobe by a deep groove lodging the azygos vein.