The diagnostic value of MSCT multi-phase enhanced scan in solitary fibrous tumor of the pleura

QIN Bin; LIU Shaowei; ZENG Liang; ZHANG Yu

Abstract：Objective To investigate the value of multi-slice spiral CT( MSCT) enhanced scan in the diagnosis of solitary fi-brous tumor of pleura ( SFPT) so as to improve the diagnostic accuracy. Methods We retrospectively analysed of clinical and CT data of 18 cases who were confirmed SFPT by operation or biopsy from 2013~2016. We analysed of tumor location, size, shape, density, relationship with surrounding tissue and multi phase enhanced characteristics, and summarized the clinical and imaging findings. Results 18 cases were single lesions, 10 cases occurred on the left side, 8 cases on the right. The maximum diameter of the lesions was 0. 8~7. 5 cm (median 3. 2 cm). 6 cases were larger than 5. 0 cm, 7 cases were less than 3. 0 cm. 18 lesions were all performed on multi phase enhanced CT scan. The 5 cases were mild hypoattenuation, 6 cases presented with iso-density, and other 7 cases showed mixed attenuation (3 cases with calcification and 4 cases with necrosis). 8 cases were per-formed homogeneous enhancement;while 10 cases showed"map like" uneven enhancement. 12 cases showed no enhancement in arterial phase, then showed mild to moderate enhancement in venous phase and delayed phase;4 cases showed mild to moderate inhomogeneous enhancement in arterial phase, and enhanced higher degree in venous and delayed phase;2 cases showed moder-ate heterogeneous enhancement in arterial phase, and enhancement decreased slightly in venous and delayed phase. Conclusion SFTP has some special characteristics on CT, and multi phase enhanced scan can reflect the feature of lesion enhancement and has important value for preoperative diagnosis.