胸腹部孤立性纤维性肿瘤的影像学表现

目的 探讨孤立性纤维性肿瘤的CT及MRI表现.方法 回顾分析10例经手术病理证实的孤立性纤维性肿瘤患者临床及影像资料.所有患者均行CT平扫及双期增强扫描,其中7例行后处理成像.5例同时行MRI平扫及增强.结果 肿瘤位于胸膜5例,肺内2例,腹膜后2例,腹膜1例,肿瘤直径5.5～27 cm.肿瘤边界清晰8例,2例与周边组织分界欠清,肿瘤密度均匀者6例,坏死囊变者4例.肿瘤增强后实质成分呈均质轻到中度强化9例,实质期肿瘤持续强化,明显强化者1例,伴有钙化1例.结论 孤立性纤维性肿瘤的影像学表现有一定的特征性,CT及MRI检查对诊断与鉴别诊断具有重要价值.

Imaging diagnosis of solitary fibrous tumors

Objective To discuss the feature of solitary fibrous tumor on CT and MRI. Methods The clinical and imaging data A of 10 cases with pathologically confirmed solitary fibrous tumor were analyzed retrospectively. All patients underwent un-enhanced and dual-phase enhanced CT scanning, and post-processing reconstruction were done in 7 cases. 5 cases underwent plain and enhanced MRI simultaneously. Results The tumor located in pleural in 5 cases, lung in 2 cases, retroperitoneal in 2 cases, peritoneum in 1 case. The diameter of tumor was of 5.5-27cm range. The boundary of tumor was clear in 8 cases not in 2 cases. The density was even in 6 cases, and with cystic necrosis in 5 cases. The solid components of tumor was homogeneous en- hanced lightly to moderately with continued strengthen in parenchymal phase. Obviously enhancement was found in 1 case and cal- cification appeared in 1 case. Conclusion Imaging findings solitary fibrous tumor are characteristic.CT and MRI have a great diagnostic and differential diagnostic value in solitary fibrous tumor.