" Cervix sign" in congenital hypertrophic pyloric stenosis

Fig 1- Transverse epigastric high-resolution US scan of a neonate showing classical " Cervix sign " due to hypoechoic mural thickening of gastric pyloric canal , s/o Congenital hypertrophic pyloric stenosis.

SMA stenosis at origin on color & spectral Doppler

 Fig 1- Midline Sagittal color Doppler image upper abdomen showing narrowing  of SMA at origin with aliasing on color.

 Fig 2- Same color Doppler scan upper abdomen showing hypoechoic plaque at SMA origin with luminal narrowing & color aliasing.

Fig 3- Spectral waveform at stenosis showing high velocities