Misdiagnosis of pancreatic metastasis from renal cell carcinoma: A case report.

Background: Pancreatic metastases account for only a small proportion of all pancreatic malignancies. Isolated pancreatic metastasis from renal cell cancer (isPM-RCC) is extremely rare and may be difficult to differentiate from more common primary neoplasms. A history of nephrectomy is crucial for the diagnosis.

Feasibility of Transabdominal Real-time CDFI and HDFI Techniques for Fetal Pulmonary Vein Display in the First Trimester.

Objective: This study aimed to assess the feasibility and usefulness of transabdominal color Doppler flow imaging (CDFI) technology and the high-definition flow imaging (HDFI) technique in detecting fetal pulmonary veins (PVs) in the first trimester (11-13 weeks).

Methods: From December 2018 to October 2019, 328 pregnant women with 328 normal singleton fetuses (crown-rump length: 45-84 mm) who had undergone CDFI and HDFI scans for fetal heart and vessel examination were enrolled in this study. The cases were divided into three groups according to the gestational age: group A, 11 -11 weeks; group B, 12 -12 weeks; and group C, 13 -13 weeks.

Disappearance of the blood supply to a giant uterine myoma due to childbirth: A CARE-compliant article.

Rationale: Giant uterine myomas may be life-threatening due to pressure effects on the lungs and other contiguous organs.

Patient Concerns: A 32-year-old pregnant Asian woman was admitted to our hospital early in her pregnancy with a pre-pregnancy history of multiple uterine myomas.

Diagnosis: She was diagnosed with multiple giant uterine myomas in pregnancy.

Role of Lung Ultrasound in Adjusting Ultrafiltration Volume in Hemodialysis Patients.

Chronic fluid over-hydration is common in dialysis patients. It is associated with mortality and cardiovascular events. Optimal methods for adjusting fluid volume status and ideal dry weight remain uncertain.

Huge Hepatic Fungal Inflammatory Pseudotumor Misdiagnosed as Primary Hepatocellular Carcinoma.

Fungal inflammatory pseudotumor (FIPT) of the liver is a rare disease that may be mistaken for a malignant tumor. It is difficult to diagnose because of its nonspecific clinical and imaging features. We report the case of a 46-year-old Asian man who presented with a mass in the right upper quadrant of the abdomen.

Ectopic Hepatocellular Carcinoma Occurring in the Bile Duct and Extending to the Gallbladder.

Ectopic hepatocellular carcinoma (HCC) is rare and there has been no report on ectopic HCC arising from both the bile duct and the gallbladder. It is difficult to establish a correct diagnosis for this kind of HCC based on preoperative imaging. All of the preoperative imaging examinations misdiagnosed the HCC as cholangiocarcinoma in our case.

Contrast-Enhanced Ultrasound for the Characterization of Hepatocellular Carcinoma and Intrahepatic Cholangiocarcinoma.

Purpose And Methods: The ability of contrast-enhanced ultrasound (CEUS) to differentiate between hepatocellular carcinoma (HCC) and intrahepatic cholangiocarcinoma (ICC) is still controversial. We reviewed the CEUS imaging of 819 patients (HCC=546, ICC=273) with an established pathological diagnosis. The enhancement patterns of lesions and the diagnostic performance of CEUS were analyzed.

Optimizing the US Diagnosis of Biliary Atresia with a Modified Triangular Cord Thickness and Gallbladder Classification.

Purpose To evaluate the diagnostic performance of ultrasonography (US) in the identification and exclusion of biliary atresia with a modified triangular cord thickness metric together with a gallbladder classification scheme, as well as hepatic artery (HA) diameter and liver and spleen size, in a large sample of jaundiced infants. Materials and Methods The ethics committee approved this study, and written informed parental consent was obtained. In 273 infants with conjugated hyperbilirubinemia (total bilirubin level ≥ 31.

Comparison of contrast-enhanced ultrasound and contrast-enhanced computed tomography in evaluating the treatment response to transcatheter arterial chemoembolization of hepatocellular carcinoma using modified RECIST.

Purpose: We aimed to compare contrast-enhanced ultrasound (CEUS) with contrast-enhanced computed tomography (CECT) for evaluating the treatment response to transcatheter arterial chemoembolization (TACE) of hepatocellular carcinoma (HCC).

Materials And Methods: Treatment responses of 130 patients who underwent TACE were evaluated by CEUS and CECT. We initially compared the abilities of CEUS and CECT to detect residual tumour, which were confirmed by histology or angiography.

Role of portal vein tumor thrombosis in quantitative perfusion analysis of contrast-enhanced ultrasound of hepatocellular carcinoma.

The goal of our study was to evaluate the differences between quantitative parameters of hepatocellular carcinoma (HCC) with or without portal vein tumor thrombosis (PVTT) on contrast-enhanced ultrasound (CEUS). Twenty-four patients with HCC with PVTT and 48 without PVTT underwent CEUS using sulfur hexafluoride microbubbles. Dynamic images were analyzed with quantification software.

Percutaneous radiofrequency ablation of malignant liver tumors with ultrasound and CT fusion imaging guidance.

Background: To evaluate the feasibility, accuracy, and utility of sonography (US) and CT fusion imaging guidance for radiofrequency ablation (RFA) of malignant liver tumors not visualized on conventional US.

Methods: Seventy-seven patients with hepatocellular carcinoma and 15 patients with metastatic liver cancer with a total of 136 lesions underwent RFA with US and CT fusion imaging guidance. The mean number of punctures, success rate of a single ablation session, local tumor progression rates, and long-term outcome were evaluated.

Real-time contrast enhanced ultrasound imaging of focal splenic lesions.

Objective: To investigate the imaging features of focal splenic lesions (FSLs) on contrast-enhanced ultrasound (CEUS).

Methods: Thirty two patients with FSLs proved by pathology were retrospectively analyzed. CEUS was performed using intravenous bolus injection of 2.

Contrast-enhanced ultrasound features of histologically proven focal nodular hyperplasia: diagnostic performance compared with contrast-enhanced CT.

Objectives: To investigate and compare contrast-enhanced ultrasound (CEUS) in the characterisation of histologically proven focal nodular hyperplasia (FNH) with contrast-enhanced computed tomography (CECT).

Methods: CEUS was performed in 85 patients with 85 histologically proven FNHs. Enhancement, centrifugal filling, spoke-wheel arteries, feeding artery and central scarring were reviewed and correlated with lesion size or liver background.

Role of contrast-enhanced ultrasound in follow-up assessment after ablation for hepatocellular carcinoma.

Aim: To assess the usefulness of contrast-enhanced ultrasound (CEUS) during follow-up after percutaneous ablation therapy for hepatocellular carcinoma (HCC).

Methods: A total of 141 patients with HCCs who received percutaneous ablation therapy were assessed by paired follow-up CEUS and contrast-enhanced computed tomography (CECT). The follow-up scheme was designed prospectively and the intervals between CEUS and CECT examinations were less than 14 d.

Sorafenib suppresses the rapid progress of hepatocellular carcinoma after insufficient radiofrequency ablation therapy: an experiment in vivo.

Background: Radiofrequency ablation (RFA) is a widely applied treatment for hepatocellular carcinoma (HCC), but insufficient RFA can promote rapid progression of the residual tumor through the hypoxia inducible factor-1α (HIF-1α)/vascular endothelial growth factor A (VEGFA) pathway. Although sorafenib has been successfully applied to advanced HCC, the use of sorafenib in residual tumor cells after RFA has rarely been tested.

Purpose: To evaluate the potential role of sorafenib as an adjunct to RFA to reduce the recurrence rate after insufficient RFA.

Percutaneous ablative therapies of recurrent hepatocellular carcinoma after hepatectomy: proposal of a prognostic model.

Background: Percutaneous ablative therapies (PAT) are valuable modalities for posthepatectomy recurrent hepatocellular carcinoma (RHCC), but its impact on long-term outcome and prognosis prediction have not been well documented. The present study aimed to analyze prognostic factors and to propose a prognosis-predicting model for RHCC treated with PAT.

Methods: A total of 288 patients with posthepatectomy RHCC treated with percutaneous ethanol ablation, radiofrequency ablation, microwave ablation, or ethanol ablation combined with radiofrequency ablation were included.

Objective differential characteristics of cystic biliary atresia and choledochal cysts in neonates and young infants: sonographic findings.

Objectives: To prospectively evaluate the objective differential characteristics between cystic biliary atresia and choledochal cysts on sonography among neonates and young infants.

Methods: Twenty-three patients who had sonographic findings of a portal cyst and a final diagnosis were included. Their final diagnoses were cystic biliary atresia in 12 patients and choledochal cysts in 11.

Percutaneous ultrasound-guided radiofrequency ablation treatment and genetic testing for renal cell carcinoma with Von Hippel-Lindau disease.

Percutaneous ultrasound-guided radiofrequency ablation is increasingly being studied in the treatment of renal tumors. Because percutaneous ultrasound-guided radiofrequency ablation is a minimally invasive and nephron-sparing procedure, it is ideally suited for patients with a single kidney, multiple tumors, or contraindications to conventional surgery. We report on a patient with Von Hippel-Lindau (VHL) disease who had multicentric tumors in the single kidney that was successfully treated with percutaneous ultrasound-guided radiofrequncy ablation.

Development and evaluation of lipid microbubbles targeted to alpha(v)beta(3)-integrin via biotin-avidin bridge.

This work was to report preparation and quality control of targeted microbubbles (MB(t)) via biotin-avidin bridge, specifically verification of the "biotin-avidin-biotin" sandwich structure. (1) Lipid microbubbles filled with sulphur hexafluoride were produced by sonication and compared with commercially available microbubbles. (2) MB(t) were produced via biotin-avidin bridge.

Long-term outcome of percutaneous ablation in very early-stage hepatocellular carcinoma.

Purpose: The aim of this study was to investigate the long-term outcomes of percutaneous ablation (PA) of very early-stage hepatocellulcar carcinoma (HCC) with a multimodal strategy.

Methods: Written informed consent was obtained from all patients before treatment. Percutaneous ethanol injection (PEI) was performed for tumors in unfavorable locations; microwave ablation (MWA) was performed for tumors in favorable positions without a capsule; and radiofrequency ablation (RFA) was carried out in favorable tumors with a capsule.

Percutaneous ultrasound-guided cholangiography using microbubbles to evaluate the dilated biliary tract: initial experience.

Objective: To evaluate the feasibility of percutaneous ultrasound cholangiography (PUSC) with a microbubble contrast agent in assessing obstructive bile duct diseases.

Methods: PUSC and percutaneous transhepatic cholangiography (PTC) were performed in 58 patients with obstructive jaundice undergoing ultrasound-guided percutaneous transhepatic cholangial drainage (PTCD). The PUSC findings were compared with PTC using the Chi-squared test

Results: The accuracy of PUSC in determining the level of hilar obstruction and extrahepatic obstruction was 100% (26/26) and 93.

The application value of contrast-enhanced ultrasound in the differential diagnosis of pancreatic solid-cystic lesions.

Objective: To retrospectively determine the accuracy of baseline ultrasound (BUS) and of contrast-enhanced ultrasound (CEUS) in the differential diagnosis of pancreatic solid-cystic lesions.

Methods: Fifty-four pancreatic solid-cystic lesions in 52 patients were examined with BUS and CEUS, two different seniority radiologists read the images independently, Receiver operating characteristic (ROC) analysis was used to evaluate the diagnostic value of BUS and CEUS in the diagnosis of benign or malignant pancreatic solid-cystic lesions, the diagnostic consistency between different seniority radiologists was evaluated by Kappa statistics.

Results: Among the 54 lesions, there were pancreatic cyst five cases, pancreatic pseudocyst twenty cases, pancreatic cystadenoma eight cases, pancreatic cystadenocarcinoma seven cases, intraductal papillary mucinous neoplasm of pancreas (IPMN) three cases, pancreatic carcinoma combined liquefied six cases, solid-pseudopallary tumor of pancreas (SPTP) three cases, pancreatic myopericytoma one case, pancreatic lymphangioma one case.

Value of contrast-enhanced ultrasonography in assessing the vascularity of liver metastases: comparison with contrast-enhanced computed tomography.

Objective: The purpose of this study was to compare the capability of contrast-enhanced ultrasonography (CEUS) and contrast-enhanced computed tomography (CECT) in evaluating the vascularity of liver metastases.

Methods: Both CEUS and CECT examinations were performed on 70 patients with liver metastases, which were from colon carcinoma in 31, rectal carcinoma in 17, pancreatic carcinoma in 5, and others in 17. In patients with multiple lesions, the most easily observed lesion was selected as the target lesion for evaluation of vascularity.

Renal cell carcinoma and renal angiomyolipoma: differential diagnosis with real-time contrast-enhanced ultrasonography.

Objective: The purpose of this study was to evaluate the usefulness of contrast-enhanced ultrasonography (CEUS) in differentiating renal cell carcinoma (RCC) from renal angiomyolipoma (RAML).

Methods: One hundred nineteen patients with 126 renal lesions (33 RAMLs and 93 RCCs) who had undergone CEUS were retrospectively studied. All of the lesions were histopathologically or clinical proved.

Real-time contrast-enhanced ultrasound imaging of focal liver lesions in fatty liver.

Purpose: The objective of this study was to investigate the contrast-enhanced ultrasound (CEUS) imaging features of focal liver lesions (FLLs) in fatty liver.

Method: One hundred FLLs in 98 patients with fatty liver were evaluated with real-time CEUS.

Results: All malignant FLLs showed hyperenhancement in arterial phase and contrast washout in portal and late phases.