MRI对直肠海绵状血管瘤的临床应用价值

目的:分析直肠海绵状血管瘤的MRI表现,探讨MRI对直肠海绵状血管瘤的临床应用价值.方法:搜集经手术及病理证实的直肠海绵状血管瘤8例,均行MRI平扫及增强检查,回顾性分析其MRI表现.结果:8例(100％)均表现为直肠壁明显增厚,以黏膜下层增厚为著,T2WI及FS-T2WI呈显著高信号.7例(87.5％)直肠系膜内可见...

The clinical value of MRI in rectal cavernous hemangioma

Objective:To analyze image findings and diagnostic value of MRI in cavernous hemangioma of the rectum.Methods:The non-enhanced and enhanced MRI findings of 8 cases of cavernous rectal hemangioma confirmed by pathology were retrospectively analyzed.Results:All the patients(100%)showed apparent thickening of the rectal wall,especially submucosa,with marked hyperintensity on T2WI and FS-T2WI.Seven cases(87.5%)had markedly heterogeneous perirectal fat,containing serpiginous structures with isointensity on T2WI and hyperintensity on FS-T 2WI.Multiple phleboliths with low signal and no enhancement were observed in 1 patient(12.5%).Eight cases(100%)presented progressive enhancement.The lesion was confined to the rectal submucosa and involved the sigmoid colon in 1 case(12.5%).The lesion involved the whole layer of the rectal wall in 7 cases(87.5%)including 3 cases involved the anal canal and 4 cases involved the sigmoid colon and the anal canal simultaneously.The lesions involved the mesorectum in 6 cases(75.0%),mesorectum and its surrounding structures in 1 case(12.5%).Conclusion:The cavernous rectal hemangioma has specific MRI manifestations.MRI can do etiologic diagnosis of rectal cavernous hemangioma and overall assess its extent of involvement,which has significant clinical value for clinical diagnosis and rational treatment plan.