Otosclerosis shows which type of tympanogram?: (A) Type A, (B) Type B, (C) Type C, (D) Type D
Answer is A. Type A tympanograms have normal peak height and pressure. Two variations of the Type A tympanogram also are normal in pressure, but may be shallow (AS), reflecting otosclerosis or middle ear effusion, or peaked very high (AD), reflecting ossicular discontinuity or a monomeric eardrum