gastroenterology cases
Esophageal Varix - Bleeding (12 of 15)
The rapid and high inflow of arterial blood into the splanchnic microcirculation is the main factor increasing hydrostatic pressure in the splanchnic capillaries leading to an excessive production...
Esophageal Varix - Bleeding (13 of 15)
Umbilical Hernia with Ascites Umbilical hernia is a common finding in cirrhotic patients with ascites. Spontaneous disruption of the hernia and attendant discharge of ascitic fluid is an unusual and...
Esophageal Varix - Bleeding (14 of 15)
Pathogenesis of ascites in cirrhosis Renal function abnormalities Sodium Retention The impairment in the renal ability to excrete sodium is the earliest renal dysfunction in cirrhosis. Before the...
Esophageal Varix - Bleeding (15 of 15)
The kidney is continuously generating free water in the ascending limb of the loop of Hente by a mechanism consisting in an active reabsorption of sodium chloride without a concomitant reabsorption...
Zenker's Diverticulum (6 of 8)
The fluoroscopic barium esophagram is the primary tool for the diagnosis of Zenker diverticulum. The diverticulum appears as an outpouching arising from the midline of the posterior wall of the distal...
Zenker's Diverticulum (7 of 8)
Frequently, a posterior bar representing a prominent cricopharyngeus muscle is noted as the contrast bolus passes. As the contrast bolus normally travels quickly through the pharynx and upper esophagus,...
Zenker's Diverticulum (8 of 8)
When the diverticulum is large enough to protrude laterally, it protrudes to the left in 90% of the cases. After the contrast agent bolus passes the upper esophagus, the diverticulum is typically seen...
Zenker´s Diverticula
The radiologic study shows the pharyngoesophageal (Zenker’s) diverticulum. Esophageal diverticula are more or less pronounced saccular protrusions of the esophageal wall. Traction diverticula (e.g.,...
Cytomegalovirus Esophagitis (4 of 4)
Characteristic giant cell with inclusion body in a patient with cytomegalovirus esophagitis.
Endoscopy of Scirrhous Gastric Carcinoma involving...
(Hematoxylin-Eosin) In this sequence of images showing histopathological cell carcinoma with diffuse signet-ring cell.
Endoscopy of Scirrhous Gastric Carcinoma involving...
Alcian blue staining Showing the Signet Ring Cells This condition is marked by thickening and Deeper biopsy from the same nodule confirming the presence of independent cells in the submucosa. fibrosis...
Endoscopy of Scirrhous Gastric Carcinoma involving...
Pancytokeratin (AE3/AE1) It appreciates undifferentiated malignant epithelial neoplasm infiltrating the lamina propria with Signet Ring Cells confirmed with Alcian blue and cytokeratin.
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Gottumukkala Raju
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Ahmad Hormati
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Gastroenterology Atlas
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EUS - ENDO
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SAGES - Society of American Gastrointestinal and Endoscopic Surgeons
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American Association for Primary Care Endoscopy
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Colonscopy Quiz by Dr. Raju
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Shahram Nazari
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