University:
Coventry University
Course:
B940 | Biomedical Science
Academic year:

2023
Views:

211

Pages:

4
Author:

Badusha S.

CSOM - SQUAMOSAL any purnament on on therm Lwhich bach to maning of squamas al epitithelium into the middle can. (from EAC) receres the michelle ear, the squamous epithelium proclices keratin, which will recruit the macrophages, which durne into correorecut and starts to erocling the vons of cariches & recully cructives (innen ear, wall of well, martcaid etc.. war This it penceum as unsafe Com CHOLESTEATOMA permanent almamality laading to migr -ation of stratified squamand epithelium into the middle eas and producing there and caurs erosion. Keratin crenially widen there is perforation of im If incale of com succescal, the squamaw epithelium culll grow inwances & meets the other end meccoñal layer and biceps greaming: se contact inhibition, dime the perforation is contial But in the case of chaluteatoma the pufomation is marginal of the annulers is also eroded whue TM Pulforation is reum I reached the periferai bom also when the bone mecu the annulus,, along with annulus is eroced, st also rocks a front of muccess of middle ear, thus all cew migration of squamous epithelium and produces Ruutin migration of macrophagu Jums into arteoclast & starts erocling, the bone of mucces a -further growth of apitheliuma in areas where huccosce is rodece pations will nave foul smelling scanty dischang. Mecause of the fasteit is Secondary chalesteatoma - HABERMAN THEORY OF MIGRATION Routes of nigration. primary. reconclas reconday is parauga marginal perforation seen. in Acute vecralizing. Colitis Media (ANOM) (do rementer one Harbour to anathos ie Mallerman thucery of nigrcuion) Common Primary es lly chronic Remaction of Pours to flaccida. pRefu ios veter stages of remaction) in stage & TV wane Mangala There is encetion of seinteins f Prussah's shace. an com moullent conficamoscop mo Prosim, int al mo com squcunfera such. Blis change squamosal com in Rumanticon procket Inactive acdiw No chalisteatoma chcelesteatoma preten Primary cholesteatoma a molt common lucaun it fallaus sercals atitis. Medial sa te eustachiom, talle celuunction) which bach to retraction of im clue 10 -megative pressure in middle ear if she'ritraction is concentrated to pars flaccicla it will lead to cholestectoma. as lerous otitis media is mcert common. Tous amy cholesteatoma is reen on the pars flaccicla and the retraction is nat wirille, then we consider it as a dangu/ emergency Mcest common rite of primary chalmeatoma a the pressack's spau, attic, racupnells membirame (any one a correct)" Atticoaninal csom com squamces al xyhe white chcelertentoma has moved. to the antrum of the Montcaice... cholestecitoma mcell common acquie mou common congentsat. lucause of some celld in Muccescl layer cluring clect op -ment they grow abruptly cind become Stratified squamous Levenson criteria our prass Tensa & prars flaccicta should în congenital chcelesteatoma para rensa 4 pars placcicla should bee normal and intact Toure should no 4/0 perfcricon no 1/0 ringery congenital acelesteatoma is meelt commonly seen anteriorly. in pars Tensa. econdary in parceriaryserion pow af Par Umu Pars flaccida Priman Primary chaluteatoma is bared ont WHITTMAAK THEORY