Objective: The objective of the study was to detect and analyse frequency of occurrence of different types of ossicular chain defects in chronic suppurative otitis media with cholesteatoma on mastoid exploration and to identify the ossicle most commonly eroded by cholestestoma. Study Design: Analytical study Materials and Methods: A total of 75 cases of chronic suppurative otitis media with cholesteatoma with different age groups were admitted at E.N.T. Unit-1, Mayo Hospital, Lahore from July 2002 to July 2005. Each patient had essentially the work up according to the specific Performa. Results: Ninety seven percent (97%) cases showed the ossicular erosion while 3% cases showed intact ossicle i.e., all ossicle were intact. The Long process of incus was the commonest portion involved and then stapes supra-structure. Cholesteatoma was more common in the males (52%) than in the females (48%). Majority of patients i.e. 52% were in the age group of 16-30 years. It is also revealed that majority of patients belonged to poor communities living in rural or slum areas of the cities. Conclusion: The most common presenting feature of chronic suppurative otitis media with cholesteatoma was ear discharge. Most of the cases showed the ossicular erosion and incus was most commonly involved. Cholesteatoma is more common in males than in females. Cholesteatoma is more common in low socioeconomic groups.
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