29.12.2021 Views

Diagnostic ultrasound ( PDFDrive )

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

CHAPTER 53 The Pediatric Gastrointestinal Tract 1837

A

B

C

D

FIG. 53.5 Hypertrophic Pyloric Stenosis. (A) Longitudinal scan shows markedly thickened, hypoechoic gastric antral muscle (arrow). Elongated

canal is nearly 2 cm in length. (B) Transverse scan shows typical, hypoechoic “doughnut” (arrow). Central echogenic mucosa with anechoic

luid-illed crevices. (C) In another patient, longitudinal image of the pylorus shows the thick echogenic mucosa (arrows) within the thickened

muscle mass. (D) Transverse image shows similar echogenic mucosal thickening (arrow).

A

B

FIG. 53.6 Minimal Pyloric Muscle Thickening Progresses to Hypertrophic Pyloric Stenosis. (A) Longitudinal scan in infant with a duodenal

feeding tube (arrows) shows contracted pyloric canal and 2.3-mm-thick pyloric muscle (arrowheads). (B) Two weeks later the muscle was hypertrophied

(4 mm).

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!