Nkag siab Qhov Kev Loj Hlob Los Ntawm Cov Kab Mob Precancerous rau Cancer

Mob qog noj ntshav tsis tshwm sim thaum hmo ntuj; es, nws qhov pib yog ib qho txheej txheem maj mam feem ntau cuam tshuam nrog peb theem: precancerous lesions, carcinoma nyob rau hauv situ (cov qog nqaij hlav ntxov), thiab mob qog noj ntshav.

Cov kab mob Precancerous ua haujlwm raws li lub cev lus ceeb toom zaum kawg ua ntej mob qog noj ntshav tshwm sim, sawv cev rau lub xeev tswj tau thiab thim rov qab. Txawm li cas los xij, seb qhov kev nce qib no rov qab los yog tsis zoo nyob ntawm ib qho kev ua.

Precancerous Lesions yog dab tsi?

Ua ntej, nws yog ib qho tseem ceeb kom nco ntsoov tias cov kab mob precancerous tsis yog mob qog noj ntshav; lawv tsis muaj cov qog nqaij hlav cancer. Lawv tuaj yeem raug saib raws li mob qog noj ntshav ntawm cov txheeb ze ze, nrog rau qhov zoo li hloov mus ua mob qog noj ntshav raws li kev cuam tshuam ntev ntawm cov carcinogens. Yog li ntawd, lawv tsis sib npaug rau mob qog noj ntshav thiab yuav tsum tsis txhob sib cav.

Kev hloov pauv los ntawm cov kab mob precancerous mus rau mob qog noj ntshav yog cov txheej txheem maj mam, feem ntau ncua ntau xyoo lossis ntau xyoo. Lub sijhawm no muab sijhawm rau tib neeg kom muaj kev cuam tshuam. Cov kab mob Precancerous tshwm sim los ntawm ntau yam, suav nrog kev kis kab mob los yog mob ntev, kev ua neej tsis zoo, thiab caj ces predisposition. Kev txheeb xyuas cov kab mob precancerous tsis yog qhov tshwm sim tsis zoo; Nws yog lub sijhawm rau kev cuam tshuam raws sijhawm, cuam tshuam cov qog nqaij hlav malignant, thiab muaj peev xwm thim rov qab. Cov kev ntsuas xws li kev tshem tawm kev phais, kev tshem tawm qhov mob, thiab kev thaiv cov txheej txheem stimulatory tuaj yeem kho cov kab mob precancerous mus rau lub xeev qub.

Tsis yog tag nrho cov qog ua rau pom qhov tshwm sim, yooj yim kuaj pom cov kab mob precancerous. Feem ntau cov kab mob precancerous ntsib kev kho mob suav nrog:

• Tiv thaiv kab mob plab: Ceev faj ntawm Chronic Atrophic Gastritis

• Cov theem kev loj hlob: Ib txwm plab hnyuv mucosa → Chronic superficial gastritis → Chronic atrophic gastritis

• Histological hloov: plab hnyuv metaplasia, dysplasia

• Qhov kawg tshwm sim: Gastric cancer

Txawm hais tias mob atrophic gastritis tsis tuaj yeem ua rau mob qog noj ntshav, cov mob uas tsis kho lossis rov ua dua (xws li haus cawv hnyav, kua tsib reflux, kab mob Helicobacter pylori, lossis siv cov tshuaj ntev ntev) tuaj yeem ua rau muaj kev pheej hmoo mob qog noj ntshav.

Clinical manifestations muaj xws li:

• xeev siab thiab ntuav

• Mob plab thiab mob

• Poob qab los noj mov

• Belching

• Tiv thaiv kab mob plab hnyuv loj: Tsis txhob kwv yees Adenomatous Colorectal Polyps

• Kab mob kis mus rau theem: Colonic adenomatous colorectal cancer → plab hnyuv o → Colonic polyps → Colonic polypoid qog

• Kev hloov pauv ncua sij hawm: Benign polyps rau mob qog noj ntshav feem ntau siv sijhawm 5-15 xyoo.

Cov tsos mob ntawm adenomatous colorectal polyps:

• Ua kom lub plab zom mov

• Mob plab

• cem quav

• Cov quav ntshav

Tiv Thaiv Kab Mob Siab: Khaws Lub Qhov Muag Kaw ntawm Daim Siab Cirrhosis

Cov theem kev loj hlob: kab mob siab → mob siab → mob qog noj ntshav

Yam Tseem Ceeb: Cov tib neeg uas muaj keeb kwm ntawm kab mob siab B thiab nrog rau daim siab cirrhosis yog qhov muaj feem yuav mob qog noj ntshav siab.

Txoj kev cuam tshuam:

• Kev kuaj mob tsis tu ncua: Kev kuaj mob siab B-ultrasound thiab alpha-fetoprotein qib txhua 3-6 lub hlis rau cov neeg mob uas muaj kab mob siab B-txog cirrhosis.

• Kev saib xyuas ntawm tus kab mob siab B replication thiab tus qauv tshuaj tiv thaiv kab mob rau cov neeg mob kab mob siab B.

• Lwm yam kev tiv thaiv: haus luam yeeb thiab haus cawv, thiab tsis txhob ua haujlwm dhau.

• Tiv Thaiv Mob Cancer: Ceev faj ntawm Atypical Breast Hyperplasia

Cov txheej txheem dav dav: Lub mis ib txwm → Tsis yog atypical hyperplasia → Carcinoma nyob rau hauv situ → Breast hyperplasia → Hyperplasia → Mob cancer mis