The positive pressure of cholesterol granuloma idiopathic blue eardrum. Differential diagnosis

The purpose of this presentation is to demonstrate the positive middle ear pressure in cholesterol granuloma, the so‐called idiopathic blue drum or chocolate ear. Because of this positive middle ear pressure the patients with idiopathic blue eardrum do not tend to develop the retraction pockets or subsequent cholesteatoma and therefore this is rarely a destructive disease. Since the symptoms are minimal and there is no destruction, probably the best treatment of the idiopathic blue eardrum is no treatment at all.