男性，18岁，体格检查时胸部透视发现上纵隔影增宽，CT示前上纵隔占位，则下列哪项诊断是最不可能的

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='32562' and id < 2587917 and id<>'2587917' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32562' and id > 2587917 and id<>'2587917' order by id asc limit 5