Myeloblastoma is one of the most common childhood tumors. Among children under 10 years of age, the incidence rate is about 20% to 30% of all tumors. The peak age of onset is 5 years, and men are slightly more than women. The tumarara is located in the posterior cervical fovea, near the cerebellar vermis and the fourth ventricle midline, and advanced tumors spread in the cerebrospinal fluid. Typical clinical manifestations are mainly related to the increased intracranial pressure caused by tumor occupying the posterior cranial fossa and blocking the fourth ventricle or midbrain aqueduct: headache, nausea, vomiting, blurred vision, and balance function caused by tumor compression on the cerebellum Obstacles, such as walking instability, ataxia, etc.
Proton banga remishonga
Naizvozvo, tichienzanisa neakajairika radiotherapy, proton banga kurapa ine zvirinani zvemuviri uye zvehupenyu hunhu, uye ine yakakwana radiation mwero wekusvikira mamota munzvimbo dzakadzika dzemuviri. Heavy ions uye mapurotoni anokwanisa kusvika matishu akadzika masendimita 30 pasi peganda, izvo zvinonyanya kugadzirisa kugona kudzora bundu; zvichienzaniswa nemaitiro echinyakare emwaranzi, simba remwaranzi rinosvika panzvimbo yebundu rinogona kuwedzerwa zvakanyanya (proton banga rinogona kuwedzerwa ne20%), izvo zvinonyanya kudzikisira parutivi pebundu. Kukuvadza uye mhedzisiro mhedzisiro yemaitiro munyama deredza huturu hwezvinhu zvakajairika zvinyama nekushandisa panguva imwe chete kweradiotherapy uye chemotherapy; zvakanyanya kupfupisa nzira yekurapa nekuwedzera iyo yemazuva ese radiation radiation; kuderedza kuitika kwezviremara zvechipiri zvekutanga.
