Duringthenecropsyofaneight-year-oldmixedbreeddogfromtheSouthernUnitedStates,reactivegranulomasintheesophaguscontainingbrightredworms,40mmto70mmlongarefound.Whichchoiceisthemostlikelydiagnosis?
在为一只8岁的来自美国南部的混种犬进行尸检时，在其食道的反应性肉芽肿内发现了长约40mm-70mm的亮红色蠕虫。
以下哪项是最可能的诊断？
A-Ollulanustricuspis三尖壶肛线虫B-Haemonchusplacei博氏血矛线虫C-Spirocercalupi狼尾旋线虫D-Gastrophilusspp.马胃蝇E-Physalopteraspp.泡翼线虫
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正确答案是C
AdiseaseofdogsintheSouthernU.S.andtropicalclimates,Spirocercalupi(esophagealworms)makereactivegranulomasofvariablesizeintheesophageal,gastricoraorticwalls.Typicallyasymptomatic,butlargegranulomascancauseesophagealobstruction.Largegranulomasmaybe