The place of cortical mastoidectomy in management of cases of CSOM is been a grey area for otorhinolaryngologists. In this book 150 patients were subjected to tympanoplasty with and without cortical mastoidectomy and results were analysed for success in terms of graft uptake. In this era of evidence based medicine a well planned clinical study based on sound foundation of inclusion and exclusion criteria forms very basis for advocating or refusing an already adopted or to be adopted clinical guideline and protocol; result of which is best clinical practices being established, striking a fine...