[Ectopic ossification: ultrastructural observations on bone tissue formed in tympanosclerosis].
The structure of the bone tissue ectopically formed during tympanosclerosis has been analyzed with the aid of light and electron microscopy. Methaplasic fibroblasts appear to be involved in the deposition of calcifying matrix, while completely normal osteoclasts resorb the tissue already formed. Signs of several deposition-resorption phases are present.
D001842:Bone and Bones / Q000648:ultrastructure*; D004427:Ear Diseases / Q000473:pathology; D004432:Ear, Middle / Q000473:pathology*; D006801:Humans; D008854:Microscopy, Electron; D009999:Ossification, Heterotopic / Q000473:pathology*; D012598:Sclerosis
Ossificazioni ectopiche: osservazioni ultrastrutturali sul tessuto osseo formato nella timpanosclerosi.