Differential Diagnosis of Post Auricular Swelling with Mastoid Bone Involvement.

Post auricular swelling with mastoid bone involvement most commonly occurs as a cranial complication of chronic or acute suppurative otitis media. Aim of this study, to detect etiology of postauricular swelling with mastoid bone involvement. This is a retrospective study which was done on all patients whom underwent mastoidectomy for post auricular swelling with mastoid bone involved in El Minia University Hospital from January 2014 to June 2017.