Fei Zhi-Hui, Zhou Qi-Yi, Fan Ling, Yin Chan
Department of Ultrasound, Changde Maternal and Child Health Care Hospital, Changde 415000, Hunan Province, China.
World J Clin Cases. 2024 Aug 26;12(24):5622-5627. doi: 10.12998/wjcc.v12.i24.5622.
Ileal atresia is a congenital abnormality where there is significant stenosis or complete absence of a portion of the ileum. The overall diagnostic accuracy of prenatal ultrasound in detecting jejunal and ileal atresia is low. We report a case of ileal atresia diagnosed prenatally by ultrasound examination with the "keyboard sign" and "coffee bean sign".
We report a case of ileal atresia diagnosed in utero at 31 weeks' of gestation. Prenatal ultrasound examination revealed two rows of intestines arranged in an 'S' shape in the middle abdomen. The inner diameters were 1.7 cm and 1.6 cm, respectively. A typical "keyboard sign" was observed. The intestine canal behind the "keyboard sign" showed an irregular strong echo. There was no normal intestinal wall structure, showing a typical "coffee bean sign". Termination of the pregnancy and autopsy findings confirmed the diagnosis.
The prenatal diagnosis of ileal atresia is difficult. The sonographic features of the "keyboard sign" and "coffee bean sign" are helpful in diagnosing the location of congenital jejunal and ileal atresia.
回肠闭锁是一种先天性异常，表现为回肠某部分存在明显狭窄或完全缺失。产前超声检测空肠和回肠闭锁的总体诊断准确性较低。我们报告一例通过超声检查以“键盘征”和“咖啡豆征”产前诊断为回肠闭锁的病例。
我们报告一例在妊娠31周时宫内诊断为回肠闭锁的病例。产前超声检查显示中腹部有两排呈“S”形排列的肠管。内径分别为1.7厘米和1.6厘米。观察到典型的“键盘征”。“键盘征”后方的肠管显示不规则强回声。未见正常肠壁结构，呈现典型的“咖啡豆征”。终止妊娠及尸检结果证实了诊断。
回肠闭锁的产前诊断较为困难。“键盘征”和“咖啡豆征”的超声特征有助于诊断先天性空肠和回肠闭锁的位置。
