| Diagnostic value of contrast-enhanced ultrasound in primary retroperitoneal schwannoma |
| Received:January 09, 2019 Revised:June 18, 2019 Click here to download the full text |
| Citation of this paper:徐亚丹，武文卿，韩 红，闻捷先，季正标，王文平.Diagnostic value of contrast-enhanced ultrasound in primary retroperitoneal schwannoma[J].Chinese Journal of Clinical Medicine,2019,26(3):391-394 |
| Hits: 1637 |
| Download times: 702 |
|
| Abstract:Objective：To explore the value of contrast-enhanced ultrasound (CEUS) in the diagnosis of primary retroperitoneal schwannoma (PRS). Methods：The images of ultrasound and CEUS were retrospectively evaluated in 14 PRS patients who were confirmed by pathology from January 2013 to November 2018. The perfusion patterns and time of enhancement were observed according to conventional ultrasound and CEUS images. Results：PRS is mostly located at the central axis of abdomen near the spine, the conventional ultrasound performance of PRS was heterogeneous hypoechoic tumors, single lesion with clear boundary and regular shape, and the resistant index was 0.67. One lesion showed no enhancement and the other 13 lesions showed rapidly enhancement in the early period. The mean time of begin enhancement, time to peak and time to hypoechogenity was (17.6±3.3) s, (30.9±6.1) s, and (42.9±9.8) s, respectively. The enhancement type was divided into diffuse global heterogeneous enhancement (6 cases), branching global enhancement (5 cases), septal enhancement (2 cases), and non-enhancement (1 case). Non-enhancement area was found in 11 patients in the whole period. Conclusions：PRS is mostly located at the central axis of abdomen near the spine, and the conventional ultrasound shows hypoechoic lesion, most are single with high resistant index, and cysticity is important to the diagnosis of PRS. For most PRS, CEUS shows early enhancement with global heterogeneous enhancement or branching global enhancement, and non-enhancement area is usually found in the later enhancement. |
| keywords:retroperitoneum schwannoma contrast-enhanced ultrasound contrast agent |
| HTML View Full Text View/Add Comment Download reader |
|
|
|