Figure 6. Abnormal Type B tympanogram results.
Figure 3. Abnormal Tympanogram Results
Abnormal type B tympanogram results. (A) A normal equivalent ear canal volume usually indicates MEE.
(B) A low volume indicates probe obstruction by cerumen or contact with the ear canal. (C) A high volume
indicates a patent tympanostomy tube or a tympanic membrane perforation.
Reproduced with permission: Onusko E. Tympanometry. Am Fam Physician. 2004;70(9):1713-1720.
