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Pyloric stenosis as seen on ultrasound in a 6-week-old [13] Diagnosis is via a careful history and physical examination, often supplemented by radiographic imaging studies. Pyloric stenosis should be suspected in any infant with severe vomiting. On physical exam, palpation of the abdomen may reveal a mass in the epigastrium.
Pyloromyotomy is a surgical procedure in which a portion of the muscle fibers of the pyloric muscle are cut. This is typically done in cases where the contents from the stomach are inappropriately stopped by the pyloric muscle, causing the stomach contents to build up in the stomach and unable to be appropriately digested.
Retained gastric material greater than three hours after a meal will generate a splash sound and indicate the presence of a hollow viscus filled with both fluid and gas. An example would be a gastric outlet obstruction (GOO) due to pyloric stenosis, with abdominal succussion splash. [1]
Barium X-ray examinations are useful tools for the study of appearance and function of the parts of the gastrointestinal tract. They are used to diagnose and monitor esophageal reflux, dysphagia, hiatus hernia, strictures, diverticula, pyloric stenosis, gastritis, enteritis, volvulus, varices, ulcers, tumors, and gastrointestinal dysmotility, as well as to detect foreign bodies.
In children, congenital pyloric stenosis / congenital hypertrophic pyloric stenosis may be a cause. A pancreatic pseudocyst can cause gastric compression. Pyloric mucosal diaphragm could be a rare cause. Malignant Tumours of the stomach, including adenocarcinoma (and its linitis plastica variant), lymphoma, and gastrointestinal stromal tumours
The diagnosis of duodenal atresia is usually confirmed by radiography. An X-ray of the abdomen is the first step in evaluation. The x-ray should be obtained after placement of a nasogastric tube (feeding tube), evacuating the stomach and filling 40-50 ml of air [ 5 ] to demonstrate two large air filled spaces, the so-called "double bubble" sign.
It may be seen in Crohn's disease, hypertrophic pyloric stenosis, carcinoid tumor and colon cancer. In people with Crohn's Disease, the string sign is caused by incomplete filling of the intestinal lumen, which results from irritability and spasm associated with severe ulceration.
A gastric emptying scintigraphy test involves eating a bland meal that contains a small amount of radioactive material. An external camera scans the abdomen to locate the radioactive material. The radiologist measures the rate of gastric emptying at 1, 2, 3, and 4 hours after the meal. The test can help confirm a diagnosis of dumping syndrome.