外生性十二指肠平滑肌肉瘤的影像诊断(附6例报告)

Imaging diagnosis of exogenous duodenal leiomyosarcoma

目的 评价各种影像检查方法对外生性十二指肠平滑肌肉瘤的诊断价值。方法 外生性十二指肠平滑肌肉瘤 6例 ,均行消化道钡餐造影 ,B超检查 ,CT检查和 /或MR检查和血管造影检查。结果 所有病例均经手术病理证实为外生性平滑肌肉瘤。上消化道造影表现为外压性改变 ,2例可见肠道外不规则钡斑 ,B超显示上腹实性肿块 ,CT、MR显示为实性肿块 ,2例可见肿块与十二指肠相连 ,血管造影表现为多血供肿瘤 ,由胃十二指肠动脉和肠系膜上动脉的分支右、中结肠动脉供血。结论 外生性十二指肠平滑肌肉瘤的诊断应在消化道作钡餐的基础上联合应用CT和 /或MR及血管造影检查。

Objective To evaluate the various imaging features of exogenous duodenal leiomyosarcoma.Methods Six cases of exogenous duodenal leiomyosarcoma were examined with upper GI series,B US,CT scan and/or MRI and angiography.Results All cases were confirmed by operation and pathology.Upper GI series showed suppressive changes.Extramural irrgular crater was found in two cases.B US ,CT and MRI showed solid masses.The mass associated with duodenum was found in two cases.Angiography showed abundant blood supply tumor and it was supplied by gastric duodenal artery and upper mesenteric artery.Conclusion The diagnosis of exogenous duodenal leiomyosarcoma is based on upper GI series examination combined with CT and/or MRI and angiograpty.