title: Morphological alterations in the tympanic membrane affected by tympanosclerosis: ultrastructural study.
abstract: The ultrastructure of tympanoslerotic tissue, surgically excised from patients, has been studied with particular reference to the morphological changes of the connective tissue components and mineralization. Detailed analysis revealed the combination of degenerative and fibroplastic alterations, especially in the circular fibrous layer of the thickened lamina propria. In the biological material in this study the authors recognized different stages of calcium plaque development with discrete, moderate, and severe degree of mineralization. Extracellular matrix vesicles, with or without calcareous deposits, released by degenerating fibroblasts were prominent. In these biopsies no distinct morphological features of an inflammatory reaction were seen.
authors.affiliation: Department of Electron Microscopy .
authors.forename: Cecylia
authors.initials: C
authors.lastname: Tukaj
authors.forename: Jerzy
authors.initials: J
authors.lastname: Kuczkowski
authors.forename: Monika
authors.initials: M
authors.lastname: Sakowicz-Burkiewicz
authors.forename: Grażyna
authors.initials: G
authors.lastname: Gulida
authors.forename: Dymitry
authors.initials: D
authors.lastname: Tretiakow
authors.forename: Tomasz
authors.initials: T
authors.lastname: Mionskowski
authors.forename: Tadeusz
authors.initials: T
authors.lastname: Pawełczyk
mesh_terms: D006801:Humans; D046529:Microscopy, Electron, Transmission; D063371:Myringosclerosis / Q000473:pathology*