Gomori silver impregnationstain

Go·mo·ri sil·ver im·preg·na·tionstain

(gō-mōr'ē sil'vĕr im'preg-nā'shŭn stān)
A reliable method for reticulin, as an aid in the diagnosis of neoplasm and early cirrhosis of the liver; the staining solution employs silver nitrate, potassium hydroxide, and ammonia water carefully prepared to avoid having silver precipitate.