Figure 10: Endoscopic view (0° optic) of chronic otitis media of the right middle ear. Mesotympanic defect of the tympanic membrane with preserved fibrous ring is found. The mucosa of the tympanic cavity is swollen and secreting (source and copyright: Lenarz T, Boenninghaus HG. HNO. 14th Edition, 2012, page 94, [64]. Courtesy of Springer).