3Bruneton JN, Roux P, Caramella E, et al. Ear,nose, and throat cancer: ultrasound diagnosis of metastasis to cervical lymph nodes [J]. RadMogy, 1984, 152(3): 771-773.
4Sivit CJ. Visualization of enlarged mesenteric lymph nodes at US examination clinical significance [J]. Pediatr Radiol, 1993,23 (6):471- 475.
5Wiersma F, Toorenvliet BR, Ruiqe M, et al. Increased echogenicity of renal cortex: a transient feature in acutely ill children [J]. Am J Roentgenol, 2008, 190(1):240-243.
6Simanovsky N, Hiller N. Importance of sonographic detection of enlarged abdominal lymph nodes in children [J]. Ultrasound Med, 2007, 26(5):581-584.
2Ang A, Chong NK, Daneman A. Pediatric appendicitis in" real-time" :the value of sonography in diagnosis and treatment. Pediatr Emerg Care,2001,17(5) :334-340.