Tympanic membrane and middle ear pathologic correlates in mucoid otitis media

OBJECTIVE: The goal of this study was to correlate tympanic membrane (TM) a nd middle ear (ME) pathologies in mucoid otitis media (MOM), METHODS AND MATERIAL: Forty ears with MOM and 56 control ears were retrospe ctively evaluated for TM and ME pathologies. Comparisons of TM thicknesses in MOM versus control ears were correlated with the Student t test; chi(2) analysis was used to correlate pathologic findings of the TM and ME. RESULTS: Thicknesses in all quadrants except the umbo were increased in MOM because of infiltration of inflammatory cells and fibrosis, The most commo n ME pathologies were granulation tissue and fibrosis, Significant correlat ions included (1) TM retraction and ME granulation tissue and fibrosis and (2) pars flaccida, posterosuperior, and anteroinferior thickness and ME gra nulation tissue and fibrosis, CONCLUSION: TM changes are likely to occur in patients with otitis media wi th effusion (MOM), and their presence is a strong indication of underlying ME pathology.