Title:Contrast-enhanced Ultrasonography for Diagnosis of Small Intestinal
Leiomyosarcoma with Hepatic Metastasis: A Clinical Report of One Case and
Review of the Literature
Volume: 20
Author(s): Jiubo Sun, Gang Li, Xiaoguang Huo, Ning Fang, Xiaofei Wang and Wenzhe Xu*
Affiliation:
- Department of Ultrasound, Zibo Central Hospital, Zibo, China
Keywords:
Leiomyosarcoma, Small intestine, Liver, Computed tomography, Magnetic resonance imaging, Contrast-enhanced ultrasonography.
Abstract:
Background:
Small intestinal leiomyosarcoma is a rare malignant tumor of the gastrointestinal tract. Clinical symptoms are atypical and can be complicated by
gastrointestinal bleeding and intestinal obstruction.
Case Presentation:
We report a case of a 73-year-old patient with small intestinal smooth muscle sarcoma with hepatic metastasis. No significant abnormalities were
seen on examination of the abdomen. We performed abdominal enhancement CT, contrast-enhanced ultrasonography (CEUS), and ultrasoundguided
pelvic mass puncture biopsy, and we found a heterogeneous density and echogenicity of the pelvic mass, and the enhancement was
progressive with sustained hyperenhancement. The postoperative pathology was smooth muscle sarcoma of the small intestine. The typical fast-in,
fast-out bull's-eye sign of metastases, characterized the liver presented with multiple hypodense and echogenic nodules and the enhancement. The
clinical presentation, imaging, histologic features, and treatment are also discussed in this article.
Conclusion:
This article briefly reviews the literature on small intestinal leiomyosarcoma. The purpose of this case report is to emphasize the specificity of the
case and evaluate the imaging presentation of ultrasound (US) and CEUS and the main differential diagnosis of this rare gastrointestinal tumor.
