Important knowledge

Central perforation Rt ear 👂

Tympanic membrane mobility Decrease mobility ddx - otitis media with effusion - adhesive otitis media - tympanosclerosis - atelectasis Increase mobility ddx - patulous eustachian tube ( يضل مفتوح مينسد)

Two methods to examine tymp. Membrane mobility 1- valsalfa maneuver 2- pneumatic siegle speculum

Left tymp. Membrane