Multimodal imaging findings of sarcomatoid carcinoma of the urinary bladder.

Sarcomatoid carcinoma, a rare and aggressive subtype of bladder cancer, accounting for 0.3% of cases, is more aggressive than urothelial carcinomas. Accurate diagnosis, crucial for treatment, can be challenging.

Sarcomatoid hepatocellular carcinoma mimics hepatic abscess on contrast-enhanced ultrasound.

Sarcomatoid hepatocellular carcinoma (SHCC) is a rare subtype of hepatocellular carcinoma characterized by abdominal pain or persistent fever with an inflammatory reaction. Here, we report a case of SHCC mimicking hepatic abscess described by not only ultrasonography but also computer tomography. SHCC is a rare subtype of hepatocellular carcinoma characterized by epithelial and mesenchymal tumor features with sarcomatoid morphology.

The impact of risk perception and institutional trust on COVID-19 vaccine hesitancy in China.

Vaccination has become the primary means for citizens to prevent severe morbidity and mortality during the pandemic. However, vaccine hesitancy poses a major threat to global public health security. Based on the data from Chinese General Social Survey in 2021, this study aims to explore the socio-political aspects of COVID-19 vaccine hesitancy, focusing on the relationship between COVID-19 risk perceptions, institutional trust and vaccine hesitancy.

Imaging findings of succinate dehydrogenase-deficient renal cell carcinoma.

Key Clinical Message: A 50-year-old man with a mass located in the left kidney was described by multimodal images, including ultrasonography, computed tomography, and magnetic resonance imaging. After surgical resection of the mass, pathological examination confirmed succinate dehydrogenase-deficient renal cell carcinoma.

Abstract: Succinate dehydrogenase-deficient renal cell carcinoma (SDH-deficient RCC) is a malignant tumor in the kidney associated with the loss of mitochondrial enzyme II.

Imaging findings of superficial angiomyxoma in the eye socket.

Key Clinical Message: A 23-year-old male with a tumor in the eye socket was characterized by multimodal images, including ultrasonography, computed tomography, and magnetic resonance imaging. After admission, surgical resection of the tumor was performed and superficial angiomyxoma was confirmed. Two years later, this tumor recurred in the same location.

Imaging manifestations of small cell neuroendocrine carcinoma of the ureter.

Small cell neuroendocrine carcinoma (SCNEC) of the ureter is a rare malignant tumor originating from the metaplasia of urothelial cells. This report presents a case of ureteral SCNEC that was preliminarily disclosed by computed tomography; thereafter, transabdominal ultrasonography, transrectal ultrasonography, and magnetic resonance urography were performed to characterize the mass.

Diagnostic value of semi-quantitative grading of musculoskeletal ultrasound in wrist and hand lesions of subclinical synovitis in rheumatoid arthritis.

We used semi-quantitative grading of musculoskeletal ultrasound to evaluate wrist and hand lesions of subclinical synovitis, in order to make earlier diagnosis of rheumatoid arthritis. A total of 164 patients were included in this study. Physical examination and ultrasound examination were used to evaluate 30 joints of the wrist and hand.

Imaging findings of the primary mucoepidermoid carcinoma of the breast.

Mucoepidermoid carcinoma (MEC) is an invasive tumor that has been reported in many organs, such as the salivary glands, lungs, esophagus, and thymus; however, it rarely affects the breast. Here, we report a case of primary breast MEC with imaging, including mammography, ultrasonography, and magnetic resonance imaging.