Umdlavuza wesibili oyinhloko ubhekisela ekubeni khona komdlavuza wesibili ongahlobene nomuntu oye waba nomunye umdlavuza nganoma yisiphi isikhathi esikhathini esidlule. Lokhu kungaba yisikhathi esididekayo, ngoba ngokuvamile uma umdlavuza utholakala ngemuva kokuba unomdlavuza, kungenxa yokusabalalisa noma imetastasis yomdlavuza wokuqala, kungaba endaweni yangakini (eduze kwesifo sokuqala) noma kwesinye isifunda somzimba.
Isikhathi
Akucaci ukuthi kwenzeka kaningi kancane kancane ukwelashwa. Kungacatshangwa ukuthi noma yini engabangela umdlavuza, ingakunqanda ukuba uhlakulele omunye umdlavuza esikhathini esizayo. Siphinde sazi ukuthi ezinye zokwelashwa ngomdlavuza, njenge-chemotherapy kanye nokwelapha imishanguzo, kungandisa ingozi yokuthi uzokwakha omunye umdlavuza ongathinteki esikhathini esizayo. (Khumbula ukuthi le nengozi iphansi kakhulu, ikakhulu uma kuqhathaniswa nezinzuzo zokwelapha umdlavuza wokuqala).
Umdlavuza wesibili wesibili ungase uvele emzimbeni owodwa noma isitho njengomdlavuza wokuqala noma kwenye indawo yomzimba.
Isibonelo somdlavuza wesibili wesiqalo esivela esithombeni esifanayo singase sifake umdlavuza webele wesokudla ngakwesinye umuntu owayenomdlavuza wesifo somdlavuza wesinxele. Esinye isibonelo singaba ngumdlavuza omusha ongahlobene nomunye we-lobe wamaphaphu, ngemuva kokuhlinzwa okuphumelelayo ukususa umdlavuza ku-lobe ehlukile.
Izibonelo
Izibonelo zomdlavuza wesibili wesibili ovela kwenye indawo zingase zibandakanye umdlavuza wamaphaphu (ohlanganisa amangqamuzana emaphaphu omdlavuza kanye namangqamuzana omdlavuza wesifuba) eminyakeni eminingi ngemuva kokuba uphathwe umdlavuza webele . Amaseli omdlavuza wesibili odokotela abheka ngaphansi kwe-microscope abonakala sengathi ayinomdlavuza wesifo samaphaphu hhayi amangqamuzana omdlavuza wesifuba.
Ngokufanayo, abanye abantu bangaphathwa ngempumelelo ngomdlavuza wamaphaphu, futhi izinyanga noma iminyaka kamuva kudala umdlavuza webele noma umdlavuza wesicathulo .
Lokho kusho ukuthi imithi ayiyona isayensi ephelele, futhi akunakwenzeka njalo ukutshela ukuthi umdlavuza omusha ungumuntu ohlukile noma ohlobene nomdlavuza owawunayo esikhathini esidlule.
Imithombo:
Hayat, M. et al. Izibalo ze-Cancer, Trends, ne-Multiple Cancer Ukuhlaziya kusuka ohlelweni lwe-Surveillance, Epidemiology, kanye ne-End Results (SEER). I-Oncologist . 2007. 12 (1): 20-37.
UJohnson, B. I-Cancer Emangcwabeni Yesibili Emaphileni Emva kokulashwa kwe-Cancer yokuqala ye-Lung. Journal of the National Cancer Institute . 1998. 90 (18): 1335-1345.