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目的探讨分析肾上腺肿瘤的MSCT表现特征。方法回顾性分析32例经手术病理证实的各类肾上腺肿瘤的MSCT特征,分别观察肿瘤的大小、密度、内部结构、CT增强程度、肿瘤边缘情况以及肿瘤与同侧肾上腺的关系,提出诊断与鉴别诊断的要点。结果27例良性肿瘤中,21个直径<3cm,密度均匀19个;全部病例均行增强检查,其中20个肿瘤的增强程度<20Hu;5例恶性肿瘤中,4例肿瘤>5cm,5例肿瘤密度不均匀;5例行增强检查的肿瘤CT增强程度>20Hu,3例肿瘤边界不清累及周围结构。肿瘤直径<3cm、密度均匀、CT增强程度<20Hu者多为良性肿瘤;肿瘤直径>5cm、密度不均、增强程度>20Hu、边界模糊、正常肾上腺结构消失者提示恶性肿瘤。结论认真分析影像学特征,提高肾上腺肿瘤诊断率是可能的。
Objective To investigate the characteristics of MSCT of adrenal tumors. Methods The MSCT characteristics of 32 adrenal tumors confirmed by surgery and pathology were retrospectively analyzed. The size, density, internal structure, CT enhancement, tumor margins and the relationship between the tumor and ipsilateral adrenal gland were observed, and the diagnosis and differential diagnosis Diagnostic points. Results Twenty-seven of the 27 benign tumors had a diameter of <3 cm and a uniform density of 19. All cases underwent enhanced examination, of which 20 had a degree of enhancement of <20 Hu. Among the 5 malignant tumors, 4 had a tumor size of> 5 cm, 5 had a tumor Uneven density; enhanced CT examination of 5 cases of enhanced CT> 20Hu, 3 cases of tumor border involvement and surrounding structure. Tumor diameter <3cm, uniform density, CT enhancement of <20Hu were mostly benign tumors; tumor diameter> 5cm, density unevenness, enhancement> 20Hu, fuzzy boundaries, the disappearance of normal adrenal structure prompted malignant tumors. Conclusion It is possible to carefully analyze the imaging features and improve the diagnosis rate of adrenal tumors.