Pathology Middle ear mucosa is lined by secretory epithelium forming glandlike structure u Hyalinization or tympanosclerosis A healing response It occurs during quiescent periods It is formed by fused collagenous fibers It is hardened by the deposition of calcium and phosphate crystals Conductive hearing loss is associated with masses restricting ossicular mobilityPathology ◼ Middle ear mucosa is lined by secretory epithelium forming glandlike structure. ◼ Hyalinization or tympanosclerosis ◼ A healing response ◼ It occurs during quiescent periods ◼ It is formed by fused collagenous fibers ◼ It is hardened by the deposition of calcium and phosphate crystals ◼ Conductive hearing loss is associated with masses restricting ossicular mobility