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为探讨甲型肝炎 (甲肝 )患儿腹腔淋巴结肿大的发生率、声像图特点及临床意义 ,用超声诊断仪作纵、横、斜向多方位超声切面 ,清晰显示肝门区卵圆形低回声区 ,并可与邻近脏器及血管分开 ,确认为肿大淋巴结。结果发现60例甲肝患儿显示肝门淋巴结肿大53例 (88.33 % ) ,分布于门静脉主干两侧及后方。提示 :①甲肝患儿肝门淋巴结肿大发生率高 ,可能与淋巴系统发育旺盛、对抗原的应答反应异常敏感有关 ;②肿大淋巴结分布于门脉主干两侧及后方 ,故并不压迫门脉右前方的胆总管而造成胆道梗塞 ;③肿大淋巴结的消失远迟于血清肝功能指标的恢复。
To investigate the incidence of abdominal lymph nodes in children with hepatitis A (Hepatitis A), the characteristics and clinical significance of sonography, with ultrasonic diagnostic apparatus for longitudinal, transverse and oblique multi-directional ultrasound section, clearly shows the hilar oval Hypoechoic area, and can be separated from adjacent organs and blood vessels, confirmed as enlarged lymph nodes. The results showed that 60 cases of HAV children showed hilar lymphadenopathy in 53 cases (88.33%), located in the main vein on both sides and behind. Hint: (1) The incidence of hepatic portal lymphadenopathy in children with HAV is high, which may be related to the strong development of the lymphatic system and abnormal sensitivity to the antigen response; (2) The enlarged lymph nodes are located on the both sides and the back of the main portal vein, Bile duct infarction caused by the right common bile duct; the disappearance of swollen lymph nodes is far behind the recovery of serum liver function indicators.