嗜铬细胞瘤的CT诊断

目的 探讨CT对嗜铬细胞瘤的诊断价值. 资料与方法 分析经手术病理证实的嗜铬细胞瘤20例CT征象. 结果 嗜铬细胞瘤多是单侧发病(19/20),发生于肾上腺者16例,异位者4例.肿块较大,边界清楚,多为类圆形或椭圆形(19例).肿块内密度多不均,出血、坏死常见(10/17),钙化较少见,增强扫描可见病变实质不均匀强化. 结论 CT不但能发现较小的肿瘤,还可以定位诊断,以及显示肿瘤与周围组织结构、血管的关系,有助于手术方案的选择和术后随访.

The CT Diagnosis of Pheochromocytoma

Objective To discuss the value of CT in the diagnosis of pheochromocytoma. Materials and Methods CT findings of 19 surgically and pathologically proved cases with pheochromocytoma were retrospectively analyzed. Results The pheochromocytomas occurred most unilaterally (19/20), 16 cases were found in adrenal gland,4 cases were ectopic.Most of pheochromocytomas presented as large size with round or oval, and inhomogeneous density on plain scans. Necrosis and cystic degeneration were commonly found(10/17),whereas calcification was found occasionly. Inhomogeneous enhancement in tumor parenchyma was common. Conclusion CT can not only depict small tumor,but also show the relationship with surrounding structure, and provide important information for the operation and prognosis.