本文選題：脾種植 + 磁共振成像　； 參考：《臨床放射學(xué)雜志》2015年05期

【摘要】：目的探討脾種植的CT和MRI特征性表現(xiàn)。方法回顧性分析7例腹部脾種植患者的CT和MRI表現(xiàn)并與病理結(jié)果進(jìn)行對照。結(jié)果 7例患者均有脾外傷破裂或脾切除史,有19個脾種植結(jié)節(jié),呈圓形或卵圓形。(1)1例脾種植位于腹膜后,1例2個病灶分別位于脾區(qū)和胰腺尾部,3例位于脾區(qū)。上述5例脾種植直徑10~50mm。螺旋CT掃描2例,平掃表現(xiàn)為稍低密度,增強(qiáng)掃描動脈期、門靜脈期及延遲期均為均勻稍高密度。MRI平掃5例,2例T1WI正相位均為等信號,T1WI反相位信號降低;3例T1WI正相位為稍低信號、T1WI反相位信號無明顯降低。T2WI均為中高信號。MRI增強(qiáng)掃描1例,動脈期、門靜脈期和延遲期均為高信號。病理檢查脾種植內(nèi)無或少量含鐵血黃素。(2)1例多發(fā)脾種植患者,5個病灶位于肝臟,7個病灶位于上腹部大網(wǎng)膜和腸系膜區(qū);1例脾種植位于脾區(qū);上述2例脾種植直徑10~40 mm,2例同時行CT和MR掃描。CT平掃1例為略高密度(脂肪肝背景),1例為均勻低密度;增強(qiáng)掃描動脈期、門靜脈期和延遲期均為高密度。MR平掃,T1WI 2例均為稍低信號,T1WI反相位1例信號無降低,1例信號降低;T2WI 2例均為不均勻低信號。增強(qiáng)掃描1例動脈期和門靜脈期肝臟病灶呈輕度高信號,延遲期呈低信號;大網(wǎng)腸和腸系膜病灶動脈期、門靜脈期和延遲期均呈中等高信號。1例脾區(qū)脾種植動脈期、門靜脈期和延遲期均呈低信號。病理檢查病灶內(nèi)見大量含鐵血黃素。結(jié)論脾種植的CT和MRI表現(xiàn)有一定特征性,能準(zhǔn)確反映其病理學(xué)基礎(chǔ)。
[Abstract]:Objective to investigate the CT and MRI features of splenic implants. Methods CT and MRI findings of 7 patients with abdominal splenic implants were retrospectively analyzed and compared with pathological findings. Results all of the 7 patients had a history of splenic trauma rupture or splenectomy. There were 19 splenic implanted nodules, which were round or oval. One patient with splenic implants was located in the retroperitoneal region. One patient with 2 lesions was located in the splenic region and 3 patients with the pancreatic caudal region were located in the splenic region. The diameter of splenic implants in the above 5 cases was 10 ~ 50 mm. Spiral CT scan was performed in 2 cases, with low density and enhanced arterial phase. Portal phase and delayed phase were homogeneous and slightly high density. Plain scan in 5 cases and T1WI positive phase in 2 cases. All of them were equal signal intensity T 1WI inverse phase signal decrease. 3 cases T1WI positive phase was slightly low signal intensity T 1WI inverse phase signal did not decrease obviously. T2WI was medium and high signal intensity. MRI enhanced scan in 1 case. The arterial phase, portal vein phase and delayed phase were all hyperintense. Pathological examination showed that there was no or little hemosiderin in splenic implants in 1 patient with multiple splenic implants, 5 lesions were located in the liver, 7 lesions were located in the superior abdominal omentum and mesenteric region, 1 case was located in the splenic region. Both CT and Mr scans were performed in 2 cases with splenic implant diameter of 1040 mm and 1 case with slightly high density (1 case with fatty liver background: 1 case with homogeneous low density, 1 case with enhanced arterial phase, 1 case with homogenous low density, 1 case with fatty liver background), and 2 cases with splenic implantation diameter 1040 mm / mm respectively. Both portal phase and delayed phase were high density. Mr plain scan T 1WI in 2 cases were both slightly low signal intensity and low signal intensity on T 1WI in 1 case, no decrease of signal intensity on T 1WI in 1 case, signal lowering on T 2WI in 2 cases were all heterogeneous and low signal intensity. Contrast enhanced scanning showed slight hyperintensity in hepatic lesions in arterial phase and portal phase, low signal in delayed phase, arterial phase in large reticulum and mesenteric lesions, moderate high signal in portal phase and delayed phase in 1 cases of splenic region splenic implants artery phase. Both portal vein phase and delayed phase showed low signal intensity. Histopathological examination showed a large amount of hemosiderin in the lesion. Conclusion CT and MRI findings of splenic implants have some characteristics and can accurately reflect the pathological basis of splenic implants.
【作者單位】： 鄭州人民醫(yī)院影像科;
【分類號】：R445.2;R657.6;R816.5

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