Mavuto pochiza mtundu wodabwitsa wa khansa yamtunda
Khansara yeniyeni ndi mawu omwe amagwiritsidwa ntchito pofotokoza mitundu yambiri ya khansa ya malungo yomwe imakhudza mtundu wa colon ndi / kapena rectum.
Mwa mitundu yosiyanasiyana iyi , pali imodzi yomwe imaonekera monga mawonekedwe oyambirira omwe amakhudza oposa 125,000 Achimereka pachaka. Amatchedwa adenocarcinoma ndipo amapereka 95 peresenti ya khansa yodabwitsa kwambiri ku US Kuonjezera ku classic adenocarcinoma (AC), pali zigawo ziwiri zochepa zomwe zimadziwika kuti:
- mucinous adenocarcinoma (MAC)
- signet-ring ring carcinoma (SRCC)
Pa ma subtypes awa, MAC imapezeka mobwerezabwereza ndipo imawerengera pakati pa 10 ndi 15 peresenti ya khansa yonse yosiyana.
Kumvetsa Adenocarcinoma
Adenocarcinoma imatchula mitundu yeniyeni ya khansa yomwe imakhudza maselo omwe ali osasamala. "Adeno-" ndilo choyambirira kapena "gland" pomwe "-carcinoma" ndi mawu omwe amagwiritsidwa ntchito pofotokoza khansa yomwe imayamba pakhungu kapena m'matumba omwe amayendera ziwalo.
Adenocarcinomas amakula chifukwa coloni imapangidwa ndi magalasi ambiri omwe amagwira ntchito ziwiri zofunika:
- kuti atenge madzi kuchokera kumaliseche kuti abwerere magazi
- kuti asungunuke mu ntchentche kuti apange mafuta osungunuka pamene akuchotsedwa m'thupi
Ngati maselowa sangathe kupanga ntchentche yambiri, chidebe cha coloni chingathe kuonongeka ngati malo osasunthika ogwiritsira ntchito zida ndikuziwononga. M'kupita kwa nthawi, izi zingayambitse chiwerengero cha majini, zomwe zimapangitsa maselo kuti achuluke mosalekeza popanda njira iliyonse yothetsera kapena kupsa mtima.
Ndicho chimene chimayambitsa mapangidwe a adenocarcinoma.
Momwe Makhalira Amadzimadzi Amadzimadzi Amasiyana
Mucinous adenocarcinoma (MAC) imasiyanasiyana ndi adenocarcinoma (AC) monga momwe iyenera kukhalira kuchokera ku zofanana zomwe zimayambitsa matenda, koma, mmalo mobala zochepa, zimabala zambiri.
MAC imadziwika ndi mapangidwe a chotupa chomwe chili ndi 50 peresenti mucin.
Mucin sali makoswe payekha koma m'malo mwake timagulu timene timagwiritsira ntchito glycoprotein ndi madzi ena (monga malaya ndi mkaka). Ichi ndi chigawo cha mucinous chomwe amakhulupirira kuti chimathandiza chotupa chikufalikira kwambiri pamene chimadutsa pamtunda wa chotupacho mpaka minofu yoyandikana nayo.
Momwemonso, MAC yayamba kale kuonedwa kuti ndi yachiwawa kwambiri ya AC komanso kukhala osalandira chithandizo. Akatswiri ofufuza amatsutsana kwambiri ndi zikhulupiriro ziwirizi, ena mwa iwo amadzinenera kuti sizomwe zimayenda mofulumira koma m'malo mwake zimakhala zovuta kwambiri.
Pali umboni wotsimikizira izi. Kawirikawiri, MAC imapezeka m'zigawo zapamwamba kwambiri za matendawa. Izi zikuyenera, mwa zina, kuti ziwalo za mucinous zimakhala zosavuta kwambiri kuti zotupa "zowonongeka" sizikupezeka mpaka zitakhala zazikulu komanso zowonjezereka.
Ngakhale atadziwika msanga, chotupacho sichidziwika bwino komanso chimaliziro chimapangitsa kuti ngakhale odwala matenda odwala matendawa athane bwino .
Kumbali ina, MAC ili ndi maselo osiyanasiyana "signature" kuposa AC. Ngakhale sitidziwa kuti izi zikugwirizana bwanji ndi matenda opatsirana - mwina kapena ayi - timadziwa kuti khansa ya mucinous imakhala yochepa kwambiri (chikhalidwe chomwe timatcha kuti kusasintha kwa microsatellite ) kusiyana ndi khansa yosakhala ya mucinasi.
Izi zowonongeka makamaka zimayambitsa kuyambitsa kuchulukitsa kapena mucin. Mucin, nayenso, imapanga chotchinga chimene chingathe kulepheretsa mankhwala a chemotherapy kuchokera ku maselo a kansa. Mwachidule, chemo sangathe kufika kumene ikufunikira.
Mawu Ochokera
Ngakhale zili bwino kuti mucinous adenocarcinoma ali ndi makhalidwe omwe amachititsa kuti zikhale zovuta kudziwa (ndipo zingayambitse nthawi yayitali), pali zinthu zomwe timadziwa zomwe zikugwirizana kwambiri ndi chitukuko chake:
- ali wamng'ono
- kukhala wamkazi
- mbiri ya matenda opatsirana (IBD), monga Crohn's disease kapena ulcerative colitis
- mbiri ya mankhwala opatsirana m'mimba kapena m'mimba
Ngati pali zizindikiro zoyambirira za khansa yoyipa ndipo muli ndi mbiri ya banja, ndiye kuti ndibwino kuti mutengepo kanthu ngati kufufuza koyambirira sikukudziwika. MAC kawirikawiri imaphonya mosavuta panthawi yomwe imakhala yovuta ndipo imawoneka mosavuta pogwiritsa ntchito maginito opanga chithunzi (MRI) .
Musazengereze kupempha kufufuza kwina ngati zizindikiro zikupitirira kapena kuwonjezereka. Mosiyana, mungathe kupeza lingaliro lachiwiri kuchokera kwa katswiri wodziwika yemwe akudziwa MAC ndi SRCC.
> Zosowa
- > National Cancer Institute: Ma Institutes of Health. "Khansa Stat Facts: Colon ndi Rectum Cancer." Bethesda, Maryland; 2017.
- > Numata, M .; Shiozawa, M .; Watanabe, T .; et al. "Mankhwala a kachipopathological of colorectal mucinous adenocarcinoma ndi njira zothandizira matendawa." World Journal of Oncology Opaleshoni. 2012; 10: DOI: 10.1186 / 1477-7819-10-109.