Cov qog nqaij hlav qog nqaij hlav yog ib qho mob qog nqaij hlav tsawg heev. Muaj 4000 tus neeg mob tshiab hauv Fabkis ib xyoos twg (rau 40 mob qog noj ntshav mis). Nws cuam tshuam cov poj niam ntawm 000%. Nws qhov xwm txheej tau nce ntxiv hauv txhua lub tebchaws.

Hauv tebchaws Canada xyoo 2010, mob qog noj ntshav tau kuaj pom muaj kwv yees li 1 tus txiv neej thiab 000 tus poj niam. Mob qog noj ntshav no los ntawm 4^e qeb ntawm cov poj niam mob qog noj ntshav (4,9% ntawm cov neeg mob), tab sis tsuas yog 0,3% ntawm cov poj niam mob qog noj ntshav. tus diagnostic Feem ntau tshwm sim hauv cov neeg muaj hnub nyoog ntawm 25 thiab 65 xyoo.

Cov qog nqaij hlav no feem ntau kuaj pom thaum ntxov. Cov kev kho mob tom qab ntawd zoo heev nrog kev kho mob hauv 90% ntawm cov neeg mob. Kev txhim kho kev tshuaj ntsuam xyuas kuj tseem tuaj yeem piav qhia vim li cas qhov kev kuaj mob ntau zaus. Tseeb tiag, tam sim no peb tuaj yeem tshawb pom cov qog me me uas ib zaug pom tsis pom.

Risk yam tseem ceeb

Cov qog nqaij hlav qog noj ntshav tau txhawb nqa los ntawm kev cuam tshuam ntawm cov thyroid mus rau hluav taws xob, xws li los ntawm kev kho hluav taws xob mus rau lub taub hau, caj dab lossis lub hauv siab, tshwj xeeb tshaj yog thaum menyuam yaus, los yog vim muaj hluav taws xob poob rau hauv thaj chaw uas muaj kev sim nuclear, txawm tias tom qab muaj kev sib tsoo nuclear. xws li ib qho ntawm Chernobyl. Mob qog noj ntshav tuaj yeem tshwm sim ntau xyoo tom qab kis tau.

Kev nce hauv thyroid cancer.

Qee zaum muaj tsev neeg keeb kwm ntawm cov qog nqaij hlav qog nqaij hlav los yog caj ces (xws li tsev neeg adenomatous polyposis). Ib qho kev hloov pauv noob tau raug txheeb xyuas uas txhawb nqa medullary thyroid cancer.

Cov qog nqaij hlav qog nqaij hlav tuaj yeem tshwm sim ntawm goiter lossis thyroid nodule (kwv yees li 5% ntawm nodules yog mob qog noj ntshav).

Muaj ntau hom mob qog noj ntshav

Cov thyroid yog tsim los ntawm peb hom hlwb: cov hlwb follicular (uas secrete thyroid hormones), parafollicular cells nyob ib ncig ntawm lawv thiab secreting calcitonin (koom nrog calcium metabolism), nrog rau cov hlwb tsis tshwj xeeb (txhawb cov ntaub so ntswg lossis cov hlab ntsha).

Cov qog nqaij hlav loj hlob los ntawm cov hlwb follicular hauv ntau dua 90% ntawm cov neeg mob; Raws li qhov tshwm sim ntawm cov qog nqaij hlav cancer, peb hais txog cov qog nqaij hlav papillary (hauv 8 ntawm 10 tus neeg mob) lossis cov qog nqaij hlav vesicular. Cov qog nqaij hlav no loj hlob qeeb thiab nkag siab zoo rau kev kho mob iodine.

Tsis tshua muaj (10% ntawm cov neeg mob), medullary cancer tsim los ntawm parafollicular hlwb los yog los ntawm cov hlwb tsis paub qab hau, cov qog no tau hais tias tsis txawv los yog anaplastic. Tus txha caj qaum thiab cov qog nqaij hlav anaplastic loj hlob sai thiab nyuaj rau kho.