duodenal bulb


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Related to duodenal bulb: punctate erythema

du·o·de·nal cap

the first portion of the duodenum, as seen in a radiograph or by fluoroscopy.
Synonym(s): duodenal bulb

duodenal bulb

the first part of the superior portion of the duodenum, which has a bulblike appearance on radiographic views of the small intestine.

duodenal bulb

The upper duodenal area just beyond the pylorus.
See also: bulb
References in periodicals archive ?
Blunting and distortion of villi may be observed in the duodenal bulb, secondary to expanded Brunner glands.
Ulcers rarely occur in the esophagus or in the first portion of the duodenum, the duodenal bulb.
75,76) Biopsies from the duodenal bulb should be interpreted with caution because this area is exposed to gastric acid and is prone to peptic injury; Brunner glands can also be prominent in the bulb and they may cause artifactual distortion of villi.
Brunner's gland hyperplasia is most often found in the proximal duodenum, representing the normal Brunner's glands distribution, with 70% found in the duodenal bulb, 26% in the second portion of the duodenum, and 4% in the third portion (2).
5 cm clean-based ulceration was seen on the posterior wall of the duodenal bulb.
Gastric outlet obstruction, or Bouveret's syndrome, occurs when the gallstone lodges in the duodenal bulb (1).