scholarly journals Double contrast-enhanced ultrasonography of a small intestinal neuroendocrine tumor: a case report of a recommendable imaging modality

2020 ◽  
Vol 3 (2) ◽  
pp. 147-152
Author(s):  
Jie-ying Zhao ◽  
Hua Zhuang ◽  
Yuan Luo ◽  
Ming-gang Su ◽  
Mo-li Xiong ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Neuroendocrine Tumor ◽  
Neuroendocrine Tumors ◽  
Imaging Modality ◽  
Intestinal Tumors ◽  
Double Contrast ◽  
Diagnostic Challenge ◽  
Contrast Enhanced ◽  
Contrast Enhanced Ultrasonography ◽  
Small Intestinal

Abstract A 57-year-old male presenting with spontaneously relieved abdominal cramp and distension was admitted to the West China Hospital. The diagnosis remained unclear after colonoscopy and computed tomography. Double contrast-enhanced ultrasonography was then performed and a neoplasm in the small intestine was suspected, supported by a thin-section computed tomography and positron emission tomography/computed tomography. This was confirmed pathologically after surgery to be a small intestinal G1 neuroendocrine tumor. Surgery was performed to remove approximately 25 cm of small bowel and a 3-cm solid mass located in the mesentery. The patient had a complete recovery and was tumor-free at the final follow-up. Small intestinal tumors including neuroendocrine tumors have always posed a diagnostic challenge. This case indicated that double contrast-enhanced ultrasonography is feasible in detection of small intestinal neuroendocrine tumors, and it may be an advisable approach assisting diagnosis of small intestinal tumors.

scholarly journals Double Contrast-enhanced Ultrasound for the Preoperative Gross Classification of Gastric Cancer: a Comparison With Multidetector Computed Tomography

2021 ◽  
Author(s):  
Ping He ◽  
Lan Zeng ◽  
Liying Miao ◽  
Tianli Wang ◽  
Juxiang Ye ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Computed Tomography ◽  
Diagnostic Performance ◽  
Imaging Modality ◽  
Characteristic Curve ◽  
Area Under The Curve ◽  
Contrast Enhanced Ultrasound ◽  
Double Contrast ◽  
Contrast Enhanced

Abstract Purpose To compare the diagnostic performance of double contrast-enhanced ultrasound (DCEUS) and multi-detector row computed tomography (MDCT) in the gross classification of gastric cancer (GC) preoperatively. Methods 54 patients with GC proved by histology were included in this study. The sensitivity and specificity of DCEUS and MDCT for gross classification were calculated and compared. The area under the curve (AUC) from a receiver operating characteristic curve analysis was used to evaluate the difference of the diagnostic performance between these two methods.Results There were no significant differences between DCEUS and MDCT in terms of AUC values for early gastric cancer (EGC) and Borrmann Ⅰ-Ⅲ (P = 0.248, 0.317, 0.717 and 0.464, respectively). However, the sensitivities of DCEUS for EGC, Borrmann Ⅰ and Borrmann Ⅲ were higher than those of MDCT (75% versus 62%; 100% versus 50%; 90% versus 73%). The specificity of DCEUS for Borrmann Ⅲ was lower than that of MDCT (50% versus 75%). The AUC value of MDCT for Borrmann Ⅳ was significantly higher than that of DCEUS (0.927 versus 0.625; P=0.001). The accuracy and specificity of DCEUS and MDCT for Borrmann Ⅳ were similar, but the sensitivity of MDCT was significantly higher than that of DCEUS (88% versus 25%).Conclusion DCEUS may be considered as a useful complementary imaging modality to MDCT for the evaluation of the gross classification of GC preoperatively.

scholarly journals Imaging of the adrenal gland lesions

2014 ◽  
Vol 47 (4) ◽  
pp. 228-239 ◽  
Author(s):  
Keith Herr ◽  
Valdair F. Muglia ◽  
Walter José Koff ◽  
Antonio Carlos Westphalen
Keyword(s):  
Computed Tomography ◽  
Magnetic Resonance ◽  
Adrenal Gland ◽  
Photon Emission ◽  
Resonance Imaging ◽  
Cross Sectional ◽  
Contrast Enhanced ◽  
Cross Sectional Imaging ◽  
Contrast Enhanced Ultrasonography ◽  
Photon Emission Tomography

With the steep increase in the use of cross-sectional imaging in recent years, the incidentally detected adrenal lesion, or "incidentaloma", has become an increasingly common diagnostic problem for the radiologist, and a need for an approach to classifying these lesions as benign, malignant or indeterminate with imaging has spurred an explosion of research. While most incidentalomas represent benign disease, typically an adenoma, the possibility of malignant involvement of the adrenal gland necessitates a reliance on imaging to inform management decisions. In this article, we review the literature on adrenal gland imaging, with particular emphasis on computed tomography, magnetic resonance imaging, and photon-emission tomography, and discuss how these findings relate to clinical practice. Emerging technologies, such as contrast-enhanced ultrasonography, dual-energy computed tomography, and magnetic resonance spectroscopic imaging will also be briefly addressed.

scholarly journals Imaging Features of Renal Capsule Leiomyoma on Contrast-Enhanced Ultrasonography: A Case Report

2017 ◽  
Vol 33 (6) ◽  
pp. 514-519 ◽  
Author(s):  
José Andrade Moura Neto ◽  
Ana Flavia Perpétuo de Souza ◽  
José Hermógenes Rocco Suassuna ◽  
Luiz Carlos Aguiar Vaz ◽  
Nordeval Cavalcante Araújo
Keyword(s):  
Transplant Recipient ◽  
Kidney Transplant Recipient ◽  
Malignant Lesion ◽  
Immunosuppressive Drugs ◽  
Imaging Features ◽  
Diagnostic Challenge ◽  
Contrast Enhanced ◽  
Increased Risk ◽  
Contrast Enhanced Ultrasonography ◽  
Histopathologic Analysis

Leiomyomas of the kidney are rare, mostly occurring in adults as incidental findings, and are a diagnostic challenge. In a renal transplant recipient population, an increased risk of tumors is observed due to the effect of immunosuppressive drugs. A differential diagnosis between leiomyomas and other malignant lesions is not possible with current imaging methods. This report presents a case of a native kidney capsular leiomyoma in a kidney transplant recipient and highlights the features of computed tomography and contrast-enhanced ultrasound (CEUS), along with the histopathologic analysis. The CEUS and quantification studies are helpful in demonstrating the vascularization pattern of the renal capsular leiomyoma. This entity appearing with chronic kidney disease can resemble a renal cell carcinoma, in an otherwise healthy kidney. In this case, CEUS was useful for diagnosing the vascularization of the renal mass, although the pattern of intense vascularization could be diagnostically misleading, implying a malignant lesion. However, the pattern of enhancement due to CEUS showed no peculiarities that indicated histopathologic diagnosis.

Imaging and Contrast-enhanced Ultrasound features of duodenal neuroendocrine tumor: A case report

2020 ◽  
Vol 76 (1) ◽  
pp. 27-32
Author(s):  
Yan-Qun Zhang ◽  
Jie-Xian Wen ◽  
Rong-Kui Luo ◽  
Hai-Xia Yuan ◽  
Wen-Ping Wang
Keyword(s):  
Differential Diagnosis ◽  
Case Report ◽  
Neuroendocrine Tumor ◽  
Neuroendocrine Tumors ◽  
Endocrine Cells ◽  
Contrast Enhanced Ultrasound ◽  
Duodenal Neoplasms ◽  
Contrast Enhanced ◽  
Duodenal Neuroendocrine Tumors ◽  
Ultrasound Features

Duodenal neuroendocrine tumors are rare neoplasms arising from endocrine cells. Here we present a case of 32-year-old woman with Duodenal neuroendocrine tumors, report the imaging and contrast-enhanced Ultrasound (CEUS) features and review previous literatures of neuroendocrine tumors, which may be valuable for the differential diagnosis of duodenal neoplasms.

Advantages of contrast-enhanced ultrasonography over computed tomography for the detection of persistent type II endoleak after embolization: A case report

2016 ◽  
Vol 44 (8) ◽  
pp. 522-526 ◽  
Author(s):  
Maysa Heineck Cury ◽  
Marcus Vinícius Martins Cury ◽  
Marcos Roberto Godoy ◽  
Marcelo Fernando Matielo
Keyword(s):  
Computed Tomography ◽  
Case Report ◽  
Type Ii ◽  
Type Ii Endoleak ◽  
Contrast Enhanced ◽  
Contrast Enhanced Ultrasonography

scholarly journals Predicting Neck Abscess with Contrast-Enhanced Computed Tomography

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Melisa Lim Seer Yee ◽  
Noraini Abdul Rahim ◽  
Ning Ajleaa Ngah ◽  
Yang Faridah Abdul Aziz ◽  
Sethu Subha
Keyword(s):  
Computed Tomography ◽  
Predictive Value ◽  
Imaging Modality ◽  
Local Population ◽  
High Sensitivity ◽  
Neck Abscess ◽  
Contrast Enhanced ◽  
Study Population ◽  
Enhanced Computed Tomography ◽  
Contrast Enhanced Computed Tomography

Neck abscesses are difficult to diagnose and treat. Currently, contrast-enhanced computed tomography (CECT) is the imaging modality of choice. The study aims to determine the predictive value of CECT findings in diagnosing neck abscess, causes of neck abscess and the most common neck space involved in the local population. 84 consecutive patients clinically suspected to have neck abscess who underwent CECT and surgical confirmation of pus were included. Demographic and clinical data were recorded. 75 patients were diagnosed as having neck abscess on CECT; out of those 71 patients were found to have pus. Overall CECT findings were found to have a high sensitivity (98.6%) and positive predictive value (PPV) (94.7%) but lower specificity (67.2%) in diagnosing neck abscess. The CECT diagnostic criterion with the highest PPV is the presence of rim irregularity (96%). The most common deep neck space involved is the submandibular compartment, which correlates with the finding that odontogenic cause was the most common identifiable cause of abscess in the study population. Thus, in a patient clinically suspected of having neck abscess, CECT findings of a hypodense mass with rim irregularity are helpful in confirming the diagnosis and guiding clinical management.

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