肝左叶缺如为一罕见的解剖学变异[1～ 4] ,文献报道很少[3 ] ,正确认识其影像表现 ,可避免不必要的误诊 ,现就相关的临床和影像学综述如下。1　概念及成因肝脏畸形由Ｂａｔｔｌｅ等[1 ] 分类为小叶变异、依附于肝脏的带蒂副叶、无蒂的异位肝组织和肝叶缺如或发育不全。肝左叶缺 The absence of the left lobe of the liver is a rare anatomic variation [1-4], reported in the literature rarely [3], a correct understanding of its imaging performance, to avoid unnecessary misdiagnosis, the relevant clinical and imaging studies are summarized below. 1 concept and causes Liver malformations by Battle et al [1] classified as leaflet variability, attached to the pedicled pedicle of the liver, pedunculated ectopic liver tissue and liver lack or hypoplasia. Liver left lobe missing