I-squamous (squamous) metaplasia yinguqu engeyiyo umdlavuza kwi-epithelium yezitho zangaphakathi, eyindlela yokukhusela yomzimba kwiimpembelelo zeemeko ezingathandekiyo. I-Metaplasia yinkqubo ye-pathological lapho i-cylindrical single-layered cylindrical, i-prismatic okanye i-cubithe epithelium ithatyathwa ngamaseli angamaqhinga adibeneyo epitalium, kunye okanye ngaphandle kwekristatini. Ngokuqhelekileyo i-metaplasia yeselfamily igxininisa i-epithelium yamaphaphu (ngokukodwa kubashushu) kunye nomlomo wesibeleko, kodwa inokuchaphazela ne-mucosa yesibindi, amathumbu, iingqungquthela zangaphakathi.
Inkqubo ye-squamous cell metaplasia
Ukuphuhliswa kwe-metaplasia, sicinga ngomzekelo wesibeleko somlomo, apho ukutshintshwa kwe-epithelium yeclindric isicaba. I-metaplastic flat epithelium ayiyi kuvela kwiiseli ezivuthiweyo eziqhelekileyo, kodwa zisuka kwisiseko, okubizwa ngokuba yi-cells yolondolozo. Oko kukuthi, ngaphantsi kwe-epithelium ye-cylindrical, i-cells yolondolozo yenziwe, kwaye ikhula ngokukhawuleza. Kancinane, i-epithelium ye-cylindrical ishicilelwe kwaye ishintsho sayo senziwa. Okulandelayo kuza kwesigaba se-cell squamous metaplasia, apho izifundo ze-histological zibonisa ngokucacileyo imida yamacandelo e-cell storage kwaye zenza iindidi eziliqela zeeseli ezifana ne-flat flat non-coronary epithelium.
Kwinqanaba lokukhula kwe-squamous cell metaplasia, iiseli ziba ngakumbi zifana neeseli eziphakathi kwe-flat epithelium, kwaye kwinqanaba le-metaplasia ekhulile, i-epithelium ayinakuqhathaniswa nobunzulu bomhlaba we-flat epithelium.
Ngaba i-metamlasia ye-squamous yingozi?
I-Metaplasia ayiyisifo, kodwa ukuhluka kwezinto ezisemgangathweni ezixhomekeke kwimibandela yokukhathazeka ngokomzimba okanye kwimizimba. Ngokubhekiselele kule nxalenye ethile, i-squamous cell metaplasia ayifumaneki kwaye ifunyanwe kuphela kwizifundo zebhubhoratri, ngenxa yokufunyanwa kweeseli ze-epithelium eplatlium kwi-smears, i-sputum, nezinye izinto zokuphanda okanye ukuhlolwa kweengcuba zakhe.
Ngokugqithiseleyo, i-metaplasia yenziwe ngokusesikweni semisitho engapheliyo yokuvuvukala, kunye nemiphumo engaphandle yangaphandle (ukutshaya, ukusebenza kwindawo engalungileyo, njl.). Nangona ngokwalo kuwubuchule obunobunzima, obuya kuguqulwa, kodwa ukuqhubeka kwexesha elide lezinto ezinobungozi okanye ukungabikho kwonyango esibangela ukutshintsha, kunokuqhubela phambili kwi-dysplasia kunye neemeko ezinqabileyo.
Iimbangela kunye nokunyangwa kwe-metaplasia ye-squamous
Eyona nto ixhaphakile yi-metaplasia ye-squamous ye-cervix. Inokuphendula ngayo:
- inkqubo yokuvuvukala engapheliyo;
- Ukuguguleka komlomo wesibeleko ;
- izifo zehomoni;
- izifo ezithathelwanayo.
I-Squamous cell cell metaplasia ibangelwa kukutshaya, kodwa kunokubangelwa zizifo ezingapheliyo (i-bronchitis, i- asthma , njl.). I-Metaplasia ye-bladder ibangelwa iinkqubo zokuvuvukala, kwaye kwindawo yokuqala phakathi kwezinto ezibangelwa yi-cystitis.
Ekubeni i-squamous cell metaplasia yindlela eyahlukileyo yokuphendula komzimba, ayifuni unyango oluthile. Emva kokuphilisa isifo esisisigxina okanye ukuphela kwefuthe kumzimba wexinzelelo, emva kwexesha i-epithelium ngokwayo ibuyela kwindawo evamile. Ngokomzekelo, ukuphatha i-squamous cell metaplasia ye-bronchial epithelium, ecatshulwa ngokutshaya, ngokwaneleyo ukushiya le mkhuba, kwaye zonke ezinye unyango ziya kuba zizibonakaliso.