很不幸，母亲被诊断得了癌症，无法旅行。可能只有几个月的时间。希望我弟弟来美国见最后一面。
10几年前本人（公民）申请弟弟移民，排期还没到（VISA BULLETION 3-4年都没怎么动一下）。
弟弟中国护照，长期住在西欧。有长期居留证。（刚申请美国移民时，他还在中国）
请问这种情况可否直接在欧洲申请来美探亲 （一个月左右），
-Yes. Tell the truth of your I-130 peititon for him in his visiting visa (B2) application. Because it takes long time for him to apply for the immigrant visa, his B2 visa application should not be affected, especially your mother's health is in critical condition (humane).
成功机率有多大？
-He should have a big chance to get the visa.
需要些什么材料？
-Your invitation letter addressing the invitation reason and also, provide the diagnosis of your mother's illness from the doctor.
