男,65岁。胸骨后不适6个月，进行性吞咽困难 2个月，体重减轻5 kg，对明确诊断具有意义的检査是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30415' and id < 2458765 and id<>'2458765' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30415' and id > 2458765 and id<>'2458765' order by id asc limit 5