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GI Barium Cases 1-25. Case directory. Case 1. Case directory. Intramural pseudodiverticula. Case findings: Multiple contrast-filled cavities, only 1 or 2 millimeter in diameter in the esophageal mucosa Dilated excretory ducts of deep mucous glands in esophagus
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Case directory Intramural pseudodiverticula • Case findings: • Multiple contrast-filled cavities, only 1 or 2 millimeter in diameter in the esophageal mucosa • Dilated excretory ducts of deep mucous glands in esophagus • Secondary to esophagitis: pseudodiverticula vanish when the esophagitis is treated (MC Candida) • Dilated submucosal glands and ducts, which are similar to Rokitansky-Aschoff sinuses of GB • DDX: • Moniliasis • Glycogen acanthosis
Case directory Esophageal varices • Etiology: portal venous hypertension • Classification • Uphill varices: mid to distal esophagus, portal hypertension • Downhill varices: upper or mid esophagus, SVC obstruction • DDX: • Varicoid carcinoma: superficial spreading carcinoma, with thickened nodular tortuous longitudinal folds • Has a rigid, fixed, nodular folds that do NOT change configuration (unlike varices) • Esophagitis with thickened esophageal folds • Lymphoma • Squamous cell carcinoma
Pharyngeal pouch • Case findings: • Contrast-filled cavity at the posterior wall of the esophagus • Arises between the superior and the middle pharyngeal constrictors (congenitally weak point of the pharyngeal wall) • Esophageal diverticula: • Pulsion diverticula: contain no muscle in their wall so they tend to stay filled with barium after the rest of the esophagus empties • Traction diverticula: contain muscle in their walls so they tend to empty with the rest of esophagus
Esophageal diverticulum • Pharyngo-esophageal (Zenker): • Herniation of mucosa and submucosa through oblique and transverse muscle bundles of the cricopharyngeal muscle (pseudodiverticulum) • Increased intraluminal pressures and tic formation in midline of Killian dehiscence at level of C5-C6 • MC posterior • Traction diverticulum (interbronchial diverticulum): • Response to pull from fibrous adhesions following lymph node infection (MC TB) • MC right anterior esophageal wall • Distal (epiphrenic diverticulum): • Pulsion, associated with hiatal hernia • MC right • Related to long-standing peptic esophagitis and strictures
Esophageal diverticulum • Killian-Jamieson diverticulum: • Lateral to the insertion of the longitudinal tendon of the esophagus on the cricoid cartilage • Diverticula are in the mid esophagus can congenital or traction: • Traction types develop by traction from contiguous mediastinal inflammation and adenopathy such as from TB or histoplasmosis • Other causes of mid and lower diverticula: • Iatrogenic • Ehlers-Danlos syndrome • Motility disorders such as achalasia and esophageal spasm
Large diverticulum (arrows) arising from the posterior wall of the distal esophagus Epiphrenic diverticulum
Case directory Traction diverticulum • Traction diverticulum identified by black arrow • MC located in the mid-esophagus • Result from scarring and retraction of the esophageal wall due to granulomatous disease in adjacent subcarinal or hilar lymph nodes • Presence of calcification in subcarinal (white arrows), hilar, or paratracheal lymph nodes TB
Paraesophageal hernia • Case findings: • Gastroesophageal junction in normal position • Parts of the stomach slip through the esophageal hiatus • Hiatal hernia: • Sliding: MC (80%), GEJ slides superior into the chest through the esophageal hiatus • Paraesophageal: GEJ remains in its normal position, but parts of the stomach and peritoneum slip through the esophageal hiatus
Case directory Sliding hiatal hernia
Gastric carcinoma • Case findings: • Filling defect in the gastric body • Location: MC pylorus > lesser curve, GEJ, greater curvature • Types: • Polypoid • Ulcerating • Infiltrating or schirrous:linitis plastica • DDX: metastatic breast carcinoma • Superficial spreading: confined to mucosa and submucosa • Predisposing factors: • H. pylori, adenomatous polyps, pernicious anemia, atrophic gastritis
DDX gastric mass • Malignant: • Carcinoma, lymphoma, leiomyosarcoma, metastases • Benign: • Leiomyoma, lipoma, neurofibroma • Polyps: • Hyperplastic • Adenomatous • Hamartomatous • Others: • Bezoar, Nissen fundoplication, ectopic pancreas
Case directory Gastric polyps • Hyperplastic (MC) • Adenomatous: increased risk of malignancy • Familial adenomatous polyposis (FAP) • Gardner’s syndrome • Turcot syndrome: associated with CNS tumors (e.g., gliomas) • Hamartomatous: • Peutz-Jeghers syndrome • Cowden syndrome • Inflammatory: • Cronkhite-Canada syndrome
Duodenal diverticulum • Case findings: • Large duodenal diverticulum with some small diverticula at the top • MC located near the ampulla
Case directory Intraluminal duodenal diverticulum (2 cases)
Celiac disease (sprue) • Case findings: • Proximal small bowel dilatation • Smudging and dilution of barium in LUQ • Moulage sign: produced by barium reaching such diluted, fluid-filled, hypotonic segments • Normal sized, but widely spaced, sparser folds in jejunum • Associated with transient intussusception • Risk of intestinal lymphoma • Features: • Small bowel dilatation • Moulage pattern: barium pooling • Flocculation: excessive mucus prevents an adequate coating of the mucosa by the barium (barium flocculates in the presence of mucus) • Jejunization of the ileum: increased number of folds in the ileum, with reversal of the normal jejuno-ileal fold pattern
Celiac disease (sprue) Jejunization of the ileum
Celiac disease (sprue) Flocculation
Case directory Celiac disease (sprue) • Lymphoma arising in celiac disease as thick, slightly undulating folds (arrows) and smooth nodules (arrowheads)
Crohn’s • Case findings: • Deep and superficial linear ulcerations and small bowel wall thickening near the terminal ileum • Fistula track • Features: • Deep and superficial linear ulcerations • Cobblestoning • Bowel wall thickening, strictures, skip lesions • Pseudopolyposis, fistula
Crohn’s • DDX: • Yersinia colitis: fold thickening (early finding), aphthoid ulcers, coarsened mucosal surface and inflammatory nodules (indistinguishable from early Crohn’s) • Deeper ulceration and marked luminal narrowing is unlikely • Heals to a lymphoid hyperplasia pattern, resolves completely • Ileitis: due to Shigella, Salmonella, Campylobacter • Self-limited and will not reach a stenotic stage • Tuberculosis: identical to Crohn’s
Cobblestoning: deep and superficial linear ulcerations in descending colon Crohn’s
Crohn’s • Numerous barium-filled linear clefts are seen as straight, longitudinal and transaxial lines (arrows) • Cobblestones: between the fissures are residual islands of less inflamed mucosa
Crohn’s • Confined to the mucosa and submucosa with thickened and curved folds • Long mesenteric border ulcer is seen as a thin barium-filled line (arrows)
Case directory Crohn’s • Area of ulceration merging with marked narrowing (arrowhead) of the terminal ileum • Small ulcers are also seen in the ascending colon (arrow)
Case directory Ulcerative colitis • Case findings: • Loss of haustra and mucosal distortion
Diverticulitis • Case findings: • Irregular bowel wall thickening, with narrowing of the sigmoid lumen • Mucosal pattern preserved (implies a benign process)
Case directory Diverticulitis
Moniliasis • Case findings: • Diffuse nodular and plaque like mucosal defects • Plaque like defects are longitudinally oriented • Sharply defined plaques • DDX: • Glycogen acanthosis • Reflux esophagitis: ill-defined plaques
With progression, esophagus may have a grossly irregular or shaggy contour (shaggy esophagus) Shaggy contour due to multiple plaques, pseudomembranes, and ulcers Case directory Moniliasis
Herpes esophagitis • Multiple small discrete superficial ulcerations: appears as a small barium collection with a surrounding halo of lucency due to edema • No fold thickening, normal esophageal contour • Ulcers may be clustered, MC in mid-esophagus (relative sparing of distal esophagus)
Discrete ulcers surrounded by radiolucent halos of edematous mucosa Normal intervening mucosa Herpes esophagitis
Case directory Herpes esophagitis