论文部分内容阅读
目的探讨胸腺少见原发性恶性肿瘤的CT表现特点。方法对经病理证实的10例胸腺少见原发性恶性肿瘤的CT表现进行回顾性分析,并结合文献分析胸腺少见原发性恶性肿瘤的CT表现特点。结果 (1)胸腺原始神经外胚层肿瘤1例,平扫以囊性低密度为主,可见索条状分隔影,无钙化;增强扫描,囊状低密度区无强化,索条状分隔影呈轻度强化,可见血管影穿行于瘤体内。(2)胸腺类癌3例,平扫瘤体密度不均匀,内部见小囊状低密度区,无钙化;增强扫描,肿瘤呈中度不均匀强化,囊状区未见强化,瘤内均可见多发细条状血管影。(3)胸腺鳞癌6例,平扫瘤体密度不均匀,均见囊性低密度区,2例瘤内见斑点状钙化影;增强扫描,肿瘤呈中度不均匀强化,囊状区无强化,2例瘤内见细条状血管影。结论胸腺少见原发性恶性肿瘤术前极易误诊,CT增强扫描能较好地显示肿瘤的内部结构,明确受侵范围,有助于判断手术的可切除性,确诊仍需依靠病理检查。
Objective To investigate the CT features of thymus rare primary malignancies. Methods The CT findings of 10 cases of thymus rare primary malignant tumors confirmed by pathology were analyzed retrospectively. The CT features of thymus rare primary malignant tumors were analyzed with the literature. Results (1) Thymus primitive neuroectodermal tumor in 1 case, plain cystic low density, showing the cable stripe shadow, no calcification; enhanced scan, no enhancement of cystic low density area, cable stripe shadow was Mild enhancement, we can see blood vessels through the line in the tumor. (2) Three cases of thymus carcinoid tumor showed uneven density of tumor, small saccular cystic area with no calcification, no obvious calcification, no obvious enhancement of tumor, no enhancement of cyst area, See multiple thin strips of blood vessels. (3) Thymus squamous cell carcinoma in 6 cases, unenhanced tumor density, cystic low density area, 2 cases of tumor see speckled calcification; enhanced scan, the tumor showed moderate uneven enhancement, no Strengthen, see the strip in 2 cases of vascular shadow. Conclusion Thymus rare primary malignant tumors are easily misdiagnosed before operation. CT enhanced scanning can better display the internal structure of the tumor, clarify the extent of invasion, and help to determine the resectability of the operation. The diagnosis still depends on the pathological examination.