Gastric antrum stenosis

Introduction The sinus is a predilection for gastric lesions. Gastric sinus stenosis refers to the reduction of the gastric cavity caused by various benign and malignant lesions, and the morphological changes of deformation. Often functional, organic or coexisting.

Cause

Causes of gastric sinus stenosis:

Gastric sinus stenosis can occur in many stomach and extragastric diseases, such as gastric antrum invasive cancer, chronic gastric ulcer, chemical burns in the antrum, gastric antrum, stomach tuberculosis, adhesion around the antrum. According to reports, in the organic sinus of the antrum, cancerous stenosis accounted for 34.5%, chronic gastric ulcer and antral sinusitis accounted for 61.2%, and gastric ulcer and gastric ulcer with gastric antrum inflammation in benign lesions accounted for the most, accounting for 87.8 %; simple antral sinusitis is less, accounting for 9.7%.

an examination

Related inspection

Fiber endoscopy

Diagnosis of gastric sinus stenosis:

The examination of gastrointestinal diseases is mainly performed with barium angiography, and its value is comparable to endoscopy. USG and CT have special significance for understanding the internal structure of gastrointestinal tumors, the degree of invasion of gastrointestinal wall and metastasis. The comprehensive application of these methods determines the classification of gastrointestinal tumors and the treatment plan. Can provide a strong basis. Angiography is used for the examination of gastrointestinal vascular diseases, gastrointestinal bleeding and interventional therapy, and it is also valuable for the diagnosis of small intestine tumors. MRI is of lower value in the diagnosis of gastrointestinal diseases. The identification of gastric sinus stenosis is a practical problem often encountered in radiation work. It is a relatively common X-ray sign.

Differential diagnosis

Differential diagnosis of gastric sinus stenosis:

Finding sinus stenosis, first of all should pay attention to identify whether it is caused by extra-oral lesions or intragastric lesions. Multi-line eccentricity caused by extra-gastric lesions may vary depending on body position and filling. The degree of deformation can be very serious, but the mucosal pattern is still normal, the two are not commensurate, and the occurrence of the impression or filling defect and the angle of the stomach wall are more obtuse. The lesions caused by the lesions in the stomach are mostly centripetal, the morphology is relatively fixed, and the mucosal changes first, and the range of stenosis of the antrum is consistent. The filling defect in the stomach is smaller than the angle of the stomach wall, showing an acute angle. Then consider the identification of benign and malignant stenosis. In general, the scope of malignant stenosis is more limited. Basically consistent with the degree of stenosis. Mucosal destruction, disappearance, irregular polypoid filling defect; stomach wall stiffness, fixed shape; stenosis segment entrance is large, trumpet-like or funnel-shaped; above the narrow segment, the boundary is obvious, there may be "shoulder sign" or "sleeve Sign." Asymmetrical impressions can occur at the base of the duodenal bulb. The benign stenosis is mostly centripetal, and the range is relatively wide. The mucosa of the stenosis is thickened, and there is a relatively smooth nodular translucent area, but no mucosal damage, its contraction is normal, but the expansion is poor; the entrance is small, The proximal end may be in the form of "round shoulder" or "straight line", and the base of the duodenal bulb is occasionally indented, but bilaterally symmetrical, there may be gastric mucosal prolapse.

The examination of gastrointestinal diseases is mainly performed with barium angiography, and its value is comparable to endoscopy. USG and CT have special significance for understanding the internal structure of gastrointestinal tumors, the degree of invasion of gastrointestinal wall and metastasis. The comprehensive application of these methods determines the classification of gastrointestinal tumors and the treatment plan. Can provide a strong basis. Angiography is used for the examination of gastrointestinal vascular diseases, gastrointestinal bleeding and interventional therapy, and it is also valuable for the diagnosis of small intestine tumors. MRI is of lower value in the diagnosis of gastrointestinal diseases. The identification of gastric sinus stenosis is a practical problem often encountered in radiation work. It is a relatively common X-ray sign.

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