嗜铬细胞瘤的CT诊断

目的：探讨CT对嗜铬细胞瘤定位与定性的诊断价值。方法：回顾性分析了CT检查后经手术病理证实并有完整病史资料的患者42例，结果：起源于肾上腺者35例（双侧5例），异位7例，其中恶性6例，儿童4例，嗜铬细胞瘤的CT表现为肿块较大，密度均匀或不均匀的特点，可伴有囊变，坏死或出血，增强后肿瘤实质明显强化，而坏死，囊变区无强化或略有强化，CT对该病定位率95．2％，定性率90．5％，结论：CT是嗜铬细胞瘤定位和定性诊断最有效的影像学方法，并能对多发，异位及恶性肿瘤做出较准确判断。

CT diagnosis of pheochromocytoma

Objective: To investigate the CT diagnostic value in the localization and qualitation of pheochromocytoma. Methods: Forty two cases of pheochromocytoma examined by CT with complete clinical information and surgical pathologic results were retrospectively analysed. Results: Adrenal masses were found in 35 cases(bilateral in 5 cases)and ectopic masses in 7 cases. Of all the cases 6 were malignant and 4 were found in children. CT findings are of characteristic features: Usually, pheochromocytomas were large in size and homogeneous or inhomogeneous in density, central cystic changes, necrosis and hemorrhage may be seen; tumors were markedly enhanced after contrast administration. The accuracy ratio of CT diagnosis was 95.2% in locating tumors and 90.5% in qualitative analysis. Conclusion: At present, CT is the most effective imaging modality in the localization of pheochromocyoma and determination of the pathologic nature.