Pathophysiology Microscopically, a focus of active otosclerosis reveals finger projections of disorganized bone, rich in osteocytes particularly at the leading edge. In the center of the focus, multinucleated osteocytes are often present. In the sclerotic phase
Pathophysiology ◼ Microscopically, a focus of active otosclerosis reveals finger projections of disorganized bone, rich in osteocytes particularly at the leading edge. In the center of the focus, multinucleated osteocytes are often present. In the sclerotic phase
Diagnosis Slowly progressive, bilateral(80%), asymmetric, conductive hearing loss Tinnitus is associated with 75% patients The age of onset of hearing loss is young u History of significant ear infections makes the diagnosis of otosclerosis less likely u 25% of patients present with some vestibular complaints
Diagnosis ◼ Slowly progressive, bilateral (80%), asymmetric, conductive hearing loss ◼ Tinnitus is associated with 75% patients ◼ The age of onset of hearing loss is young ◼ History of significant ear infections makes the diagnosis of otosclerosis less likely. ◼ 25% of patients present with some vestibular complaints