Robot-assisted retroperitoneal laparoscopic excision of perirenal vascular tumor: A case report

BACKGROUND A vascular tumor is a benign tumor with unique clinical and pathological features.Perirenal vascular tumor is extremely rare and has not yet been reported.Clinically,it manifests as soreness and swelling.Color ultrasound and renal angiography illustrated the perirenal mass,which was closely connected with the kidney and the surrounding tissues and organs.Histology showed extensive embedded perirenal fat,and thin-walled vascular tissue displayed a pink stain due to red blood cells.CASE SUMMARY Herein,a case of robot-assisted retroperitoneal laparoscopic excision of a perirenal vascular tumor is reported.Analysis of the clinical,biological,and histological features of the perirenal vascular tumor can provide an in-depth understanding of the disease,which provides a theoretical and practical basis for better diagnosis and treatment.CONCLUSION This study contributes to a practical basis for the diagnosis and treatment of perirenal hemangiom.

肾肿瘤血管的实验研究

目的研究肾肿瘤血管的形态分布,为肾肿瘤影像诊断和治疗提供依据。方法22例肾肿瘤,术后肾脏切除标本制作血管铸型,使用大体及电子显微镜观察肿瘤血管的形态特征。结果肾脏肿瘤血管铸型显示肿瘤血管增多、增粗、受压、移位;肿瘤内部血管丰富,且存在动-静脉瘘。结论肾细胞癌大部分为多血供肿瘤,肿瘤区血管较正常组织发生了明显变化,有自己独特的表现。

妊娠滋养细胞肿瘤子宫血管铸形研究

目的:探索妊娠滋养细胞肿瘤与子宫血管的关系。方法:甲基丙烯酸酯为铸型剂,对离体10例子宫(绒癌3例、葡萄胎2例、侵蚀性葡萄胎3例、对照2例)进行灌注,制成标本,扫描电镜观察血管的异常改变。结果:正常子宫血管分为二种类型,一是树枝状分布,二是螺旋状血管;良性葡萄胎的血管改变无明显特征;恶性滋养细胞肿瘤血管铸型立体构式,大体仍是树枝分布,螺旋血管增多,可见大片的血窦状改变血管、发夹状血管、串珠状改变及多处铸型剂漏出等血管被破坏性改变,但最为明显的改变是新生血管的出现;侵蚀性葡萄胎与绒癌的血管异常改变无明显的差异。结论:妊娠滋养细胞肿瘤在破坏子宫血管的同时,伴有新生血管的形成,为肿瘤的抗血管形成治疗提供有力证据。