Khansara ya chithokomiro ndi khansa yosowa kwambiri. Pali milandu 4000 yatsopano ku France pachaka (ya khansa ya m'mawere 40). Zimakhudza amayi pa 000%. Zochitika zake zikuchulukirachulukira m'maiko onse.

Ku Canada mu 2010, khansa ya chithokomiro inapezeka mwa amuna 1 ndi amayi 000. Khansara iyi imabwera pa 4^e chiwerengero cha khansa ya akazi (4,9% ya milandu), koma ndi 0,3% yokha ya imfa za khansa mwa amayi. ndi matenda Nthawi zambiri zimachitika mwa anthu azaka zapakati pa 25 ndi 65.

Khansara imeneyi nthawi zambiri imapezeka adakali aang'ono. Mankhwalawa amakhala othandiza kwambiri pochiza 90% ya milandu. Njira zoyezera bwino zitha kufotokozeranso chifukwa chake matendawa amakhala pafupipafupi. Zoonadi, tsopano tikhoza kuzindikira zotupa zazing’ono zomwe poyamba zinali zosaoneka.

Zowopsa

Khansara ya chithokomiro imalimbikitsidwa ndi chithokomiro ku radiation, mwina kuchokera ku chithandizo cha radiation kupita kumutu, khosi kapena pachifuwa chapamwamba, makamaka paubwana, kapena chifukwa cha kugwa kwa radioactive m'malo omwe mayeso a nyukiliya achitidwa, mwina pambuyo pa ngozi ya nyukiliya. monga ku Chernobyl. Khansara imatha kuwoneka patatha zaka zingapo itatha.

Kuwonjezeka kwa chithokomiro khansa.

Nthawi zina pamakhala mbiri ya banja la khansa ya chithokomiro kapena genetic syndrome (monga family adenomatous polyposis). Kusintha kwa jini kwadziwika komwe kumalimbikitsa khansa ya medullary chithokomiro.

Khansara ya chithokomiro imatha kufalikira pa goiter kapena nodule ya chithokomiro (pafupifupi 5% ya tinthu tating'onoting'ono timakhala ndi khansa).

Mitundu ingapo ya khansa

Chithokomiro chimapangidwa ndi mitundu itatu ya maselo: maselo a follicular (omwe amatulutsa mahomoni a chithokomiro), maselo a parafollicular omwe ali pafupi nawo ndi kutulutsa calcitonin (yomwe imakhudzidwa ndi kagayidwe ka calcium), komanso maselo osadziwika (othandizira minofu kapena mitsempha ya magazi) .

Khansara amayamba kuchokera ku follicular maselo oposa 90% a milandu; kutengera mawonekedwe a ma cell a khansa, timalankhula za khansa ya papillary (pazochitika 8 mwa 10) kapena khansa yapakhungu. Khansara imeneyi imakula pang'onopang'ono ndipo imakhudzidwa ndi mankhwala a ayodini a radioactive.

Nthawi zambiri (10% ya milandu), khansa ya medulla imayamba kuchokera ku ma cell a parafollicular kapena kuchokera ku maselo osakhwima, zotupazi zimanenedwa kuti ndizosasiyanitsa kapena pulasitiki. Khansara ya msana ndi anaplastic imakula mofulumira ndipo imakhala yovuta kwambiri kuchiza.