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Current Medical Imaging

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ISSN (Print): 1573-4056
ISSN (Online): 1875-6603

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Case Report

Contrast-enhanced Ultrasonography for Diagnosis of Small Intestinal Leiomyosarcoma with Hepatic Metastasis: A Clinical Report of One Case and Review of the Literature

Author(s): Jiubo Sun, Gang Li, Xiaoguang Huo, Ning Fang, Xiaofei Wang and Wenzhe Xu*

Volume 20, 2024

Published on: 23 October, 2023

Article ID: e15734056243285 Pages: 7

DOI: 10.2174/0115734056243285230925001213

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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.

Keywords: Leiomyosarcoma, Small intestine, Liver, Computed tomography, Magnetic resonance imaging, Contrast-enhanced ultrasonography.

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