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Original Article

Morphological Alterations in the Tympanic Membrane Affected by Tympanosclerosis: Ultrastructural Study

, PhD, , MD, , PhD, , MD, PhD, , MD, , MD & , PhD show all
Pages 69-73 | Received 08 Jul 2013, Accepted 05 Aug 2013, Published online: 17 Oct 2013
 

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.

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