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Radiology
Mesenteric Small Bowel
Built from Fundamentals of Diagnostic Radiology
What’s inside
8 sections · 109 slides
Overview
- Topic overview
Imaging Methods
How the small bowel is studied
- Why imaging leads in small bowel disease
- Small bowel follow-through
- Normal Small Bowel Follow-Through
- Fluoroscopic enteroclysis
- Normal Small Bowel Enteroclysis
- CT enteroclysis
- CT enterography
- CT and MR Enterography
- MR enterography and enteroclysis
- Diagnostic findings on CT and MR of the GI tract
- Capsule endoscopy
Anatomy
Jejunum, ileum, and the mesentery
- The mesenteric small intestine
- Mesenteric and antimesenteric borders
- Jejunum versus ileum
- Villi and absorptive surface
- <3 cm
- Normal small bowel measurements
Mass Lesions
Filling defects and tumors of the small bowel
- Small bowel neoplasms at a glance
- Carcinoid tumor
- How carcinoid injures the bowel
- Carcinoid imaging findings
- Carcinoid Tumor
- Adenocarcinoma
- Adenocarcinoma of the Jejunum—SBFT
- Adenocarcinoma of the Jejunum—CT
- Annular constricting lesions of the small bowel
- Lymphoma
- Lymphoma imaging patterns
- B-Cell Lymphoma—UGI
- B-Cell Lymphoma—MR
- B-Cell Lymphoma—CT
- Sandwich Sign—Mesenteric Lymphoma
- Burkitt and AIDS-related lymphoma
- Nodular lymphoid hyperplasia
- Two routes of small bowel metastasis
- Metastases
- Metastasis to Jejunum
- Kaposi sarcoma
- Gastrointestinal stromal tumors
- Malignant GI Stromal Tumor of the Ileum
- Adenoma and lipoma
- Small Bowel Lipoma
- Hemangioma
- Multiple polyps: the differential
- Peutz-Jeghers syndrome
- Other polyposis syndromes
- Ascariasis
- Ascaris Infestation
Mesenteric Masses
Tumors and other masses in the mesentery
- Mesenteric masses at a glance
- Mesenteric lymph nodes
- Lymphoma and metastases in the mesentery
- Mesenteric desmoid
- Mesenteric Desmoid
- Mesenteric GISTs and cysts
- Mesenteric Cyst
- Mesenteric teratoma and panniculitis
- Mesenteric Panniculitis
- Misty mesentery
Diffuse Small Bowel Disease
Patterns of dilation, fold thickening, and nodules
- Five rules for diffuse disease
- Dilated small bowel lumen
- Causes of dilated small bowel
- Causes of dilated small bowel (continued)
- Dilated Small Bowel, Normal Folds
- Thickened folds: straight and regular
- Thickened small bowel folds: straight and regular
- Thickened Folds—Regular and Straight
- Thickened folds: irregular and distorted
- Thickened small bowel folds: irregular and distorted
- Thickened Folds—Irregular
- Scleroderma
- Scleroderma
- Adult celiac disease
- Adult Celiac Disease
- Complications of celiac disease
- Tropical sprue and lactase deficiency
- Intestinal ischemia
- Intestinal Ischemia
- Ischemia on CT
- Radiation enteritis
- Radiation Enteritis
- Lymphangiectasia
- Eosinophilic gastroenteritis
- Amyloidosis
- Systemic mastocytosis
- Whipple disease
- Tiny small bowel nodules
- AIDS enteritis
Erosions and Ulcerations
Crohn disease and its mimics
- Crohn disease
- Crohn disease imaging hallmarks
- Crohn Disease: Cobblestone Pattern
- Crohn disease activity on CT and MR
- Crohn Disease—Terminal Ileitis
- Crohn Disease—Terminal Ileitis—MR
- Crohn disease complications
- Crohn Disease
- More Crohn disease complications
- Yersinia and Campylobacter
- Behçet disease
- Tuberculosis
Diverticula
Outpouchings and their complications
- Small bowel diverticula
- Small Bowel Diverticula
- Meckel diverticulum
- Meckel Diverticulitis
- Pseudodiverticula (sacculations)
- Key takeaways
- Suggested readings
- Suggested readings
- Brant and Helms' Fundamentals of Diagnostic Radiology