präpylorische Webstenose des Magens
Infant with
vomiting. AP image from an upper GI exam shows a persistent thin vertical filling defect which encircles the gastric antrum and causes mild persistent narrowing of the gastric antrum.The diagnosis was gastric antral web.
Gastric
antral web • Gastric antral web - Ganzer Fall bei Radiopaedia
Gastric antral webs are a ring of mucosa in the distal stomach (gastric antrum) that can lead to gastric outlet obstruction. A circumferential ring of mucosa has also been termed a "gastric antral diaphragm".
Epidemiology
Gastric antral webs are rare. There is an association with trisomy 21 and immunodeficiency syndromes.
Radiographic features
Fluoroscopy
- smooth, thin narrowing of the gastric antrum, ~2 cm from the pylorus
- if the web is large, it may result in the appearance of a "double duodenum"
Treatment and prognosis
The web may lead to gastric outlet obstruction. Symptomatic webs may be removed with upper endoscopy .
Differential diagnosis
- gastric carcinoma
- pyloric stenosis (longer channel length than a web)
Siehe auch:
Assoziationen und Differentialdiagnosen zu präpylorische Webstenose des Magens:
