Heidenhain modification of Mallory-Azan stain

Hei·den·hain mod·i·fi·ca·tion of Mal·lo·ry-A·zan stain

(hī'den-hīn mod'i-fi-kā'shŭn mal'ŏr-ē ā'zan stān)
Procedure to visualize tissues of the upper esophagus that uses azocarmine, aniline blue, and orange G stains.