Bryant Thomas H, Jackson James E
Department of Imaging, Imperial College School of Medicine, Hammersmith Hospital, London, UK.
Clin Radiol. 2002 Feb;57(2):117-22. doi: 10.1053/crad.2001.0734.
To determine the imaging characteristics of non-specific ulceration of the small intestine.
The radiographic investigations undertaken in three patients originally referred for visceral angiography in whom a histological diagnosis of non-specific ulceration of the small bowel was subsequently made were retrospectively reviewed. Two men and one woman aged from 17 to 24 years all presented with anaemia requiring blood transfusion. Visceral angiography was available for review in all three patients, abdominal computed tomography in two, and a small bowel enema and white cell scintigraphy in one.
In all three patients an angiographic abnormality was present within the ileum consisting of irregularity of the vasa recta, an area of subtle increased vascularity and early venous return. A long, non-branching vessel interpreted as a persistent vitello-intestinal artery was seen in two of these patients. A CT abnormality was present in two individuals consisting of a focal area of thickened small bowel. The single small bowel enema demonstrated a focal stricture and the white cell scan showed localized accumulation of radioactivity within the pelvis.
Non-specific small intestinal ulceration may produce abnormalities that are discernible on barium studies, computed tomography, radiolabelled white cell scanning and visceral angiography. Recognition of these findings may allow a pre-operative diagnosis of this condition.
确定小肠非特异性溃疡的影像学特征。
回顾性分析了3例最初因内脏血管造影而就诊的患者的影像学检查资料,这3例患者随后均被组织学诊断为小肠非特异性溃疡。2名男性和1名女性,年龄在17至24岁之间,均表现为需要输血的贫血。3例患者均有内脏血管造影资料可供回顾,2例有腹部计算机断层扫描资料,1例有小肠灌肠造影和白细胞闪烁扫描资料。
所有3例患者的回肠均存在血管造影异常,表现为直小血管不规则、局部血管轻度增多及早期静脉回流。其中2例患者可见一条长的、无分支的血管,被认为是持续存在的卵黄肠管动脉。2例患者存在CT异常,表现为小肠局限性增厚。单次小肠灌肠造影显示一处局限性狭窄,白细胞扫描显示盆腔内放射性局部积聚。
小肠非特异性溃疡可能产生在钡剂造影、计算机断层扫描、放射性核素标记白细胞扫描及内脏血管造影上可识别的异常表现。认识这些表现有助于术前诊断该病。