The diagnosis of an ultrasound-visualized mass can be based on several characteristics including margins, echogenicity, internal echo pattern, retrotumoral phenomenon, compressibility, and the ...

1 Department of Gastroenterology, Jiujiang City Key Laboratory of Cell Therapy, The First Hospital of Jiujiang City, Jiujiang, China 2 Department of Gastroenterology, Jiangxi Provincial Key Laboratory ...

1 Department of Pediatrics, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China 2 Department of Child Healthcare, Shunde Women and Children’s Hospital, Guangdong Medical ...