Magendivertikel

Divertikel
des Magens in der Computertomographie: Die partiell mit Luft gefüllte Formation hinter dem Magen wurde primär zufällig bei einer Untersuchung des Thorax gefunden (linkes Bild). Die Verbindung zum Magenlumen konnte in einer späteren Untersuchung mit oraler Kontrastierung sicher dargestellt werden (rechtes Bild). Die Lage vom Fundus nach dorsal orientiert ist typisch. Insgesamt sind Divertikel des Magens jedoch selten.
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Typisches
Magendivertikel an der Hinterwand; Computertomographie axial, coronar und sagittal
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Magendivertikel
an typischer Stelle dorsal mit Füllung durch das oral gegebene Kontrastmittel, welches sich auch im Magen findet. Die Lokalisation nach dorsal ist typisch.
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Gastric
diverticulum mimicking a left adrenal incidentaloma. Axial contrast enhanced CT abdomen showing a gastric diverticulum which was mistaken as left adrenal mass during a previous scan.
www.eurorad.org • CC by-nc-sa-4.0
Gastric
diverticulum mimicking a left adrenal incidentaloma. Axial contrast enhanced CT abdomen showing a gastric diverticulum which was mistaken as left adrenal mass during a previous scan.
www.eurorad.org • CC by-nc-sa-4.0
Gastric
diverticulum mimicking a left adrenal incidentaloma. Coronal contrast enhanced CT upper abdomen showing a gastric diverticulum which was mistaken as left adrenal mass during a previous scan.
www.eurorad.org • CC by-nc-sa-4.0
Gastric
diverticulum mimicking a left adrenal incidentaloma. Sagittal contrast enhanced CT upper abdomen showing a gastric diverticulum which was mistaken as left adrenal mass during a previous scan.
www.eurorad.org • CC by-nc-sa-4.0
Gastric
diverticulum mimicking a left adrenal incidentaloma. Axial contrast enhanced CT abdomen showing a gastric diverticulum which was mistaken as left adrenal mass during a previous scan.
www.eurorad.org • CC by-nc-sa-4.0
Incidental
finding of a gastric diverticulum: the role of oral contrast enhanced CT in the differential diagnosis. The oral contrast radiograph of the stomach demonstrates a saccular contrast filled extroflexion of the posterior wall of the fundus of the stomach, of about 4 cm in maximum distention, with a wide neck
www.eurorad.org • CC by-nc-sa-4.0
Incidental
finding of a gastric diverticulum: the role of oral contrast enhanced CT in the differential diagnosis. The oral contrast radiograph of the stomach demonstrates a saccular contrast filled extroflexion of the posterior wall of the fundus of the stomach, of about 4 cm in maximum distention, with a wide neck
www.eurorad.org • CC by-nc-sa-4.0
Incidental
finding of a gastric diverticulum: the role of oral contrast enhanced CT in the differential diagnosis. Axial view of intravenous contrast enhanced CT shows a rounded lesion located in the adrenal gland area, apparently poorly dissociable from the posterior wall of cardia, with a low density-air content with a high-density wall
www.eurorad.org • CC by-nc-sa-4.0
Incidental
finding of a gastric diverticulum: the role of oral contrast enhanced CT in the differential diagnosis. Oral contrast enhanced CT clearly demonstrates the passage of the contrast medium from the gastric cavity into the lesion confirming the belonging of it to the organ, and consequently the diagnosis of a gastric diverticulum
www.eurorad.org • CC by-nc-sa-4.0
Radiopaedia • CC-by-nc-sa 3.0 • de

Gastric diverticula are sac-like projections that usually originate from the gastric fundus, most commonly on the posterior surface. They are the least common of the gastrointestinal diverticula.

Epidemiology

Gastric diverticula are rare and commonly detected incidentally. The incidence varies from 0.01% to 0.11% at endoscopy studies .

Clinical presentation

Usually asymptomatic. In some cases they may present as a vague sensation of fullness immediately after meals or as gastric discomfort .

Complications like ulceration, perforation, torsion, hemorrhage and malignancy are rare and an indication for surgical treatment .

Pathology

They may be congenital (true diverticula that have all layers of the gastric wall) or acquired (false diverticula) and arise virtually anywhere along the stomach .

Radiographic features

Fluoroscopy

A well defined saccular collection of barium sulfate contrast outpouching from the gastric wall.

CT/MRI

A well defined saccular collection of fluid or gas that demonstrates communication with the gastric cavity (fills with iodinated oral contrast on CT).

Treatment and prognosis

Surgical resection is recommended when the diverticulum is large, symptomatic or complicated .

Differential diagnosis

In cross-sectional studies gastric diverticula can mimic a left adrenal mass. In fluoroscopic studies, they may mimic a gastric ulcer.

    Siehe auch:
    Assoziationen und Differentialdiagnosen zu Magendivertikel:
    Nebennierenraumforderungen
     
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    Nebenmilz
     
    Wikipedia • CC0
    Splenose
     
    Wikipedia • CC BY-SA 4.0
    Raumforderung
    hinter dem Magen
    Wikipedia • CC BY-SA 3.0
    Divertikel
    des Gastrointestinaltraktes
    Wikipedia • CC BY-SA 3.0