Stomach cancer other imaging findings
|
Stomach cancer Microchapters |
|
Diagnosis |
|---|
|
Treatment |
|
Case Studies |
|
Stomach cancer other imaging findings On the Web |
|
American Roentgen Ray Society Images of Stomach cancer other imaging findings |
|
Risk calculators and risk factors for Stomach cancer other imaging findings |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Parminder Dhingra, M.D. [2]
Overview
Fluoroscopy may be diagnostic of stomach cancer.
Barium studies
- Barium studies can identify both malignant gastric ulcers and infiltrating lesions.
- False-negative barium studies can occur in as many as 50 percent of cases.[1]
- Early gastric cancer where the sensitivity of barium meals may be as low as 14%.[2]
- Early gastric cancer has three types(elevated, superficial, shallow):
- Type I: elevated lesion, protrudes >5 mm into lumen (polypoid)
- Type II: superficial lesion (plaque-like, mucosal nodularity, ulceration)
- Type III: shallow, irregular ulcer crater with adjacent nodular mucosa and clubbing/fusion/amputation of radiation folds
- Advanced gastric cancer:[3]
- Polypoid cancer can be lobulated or fungating
- Lesion on dependent or posterior wall; filling defect in barium pool
- Lesion on nondependent or anterior wall; etched in white by a thin layer of barium trapped between edge of mass & adjacent mucosa
- Ulcerated carcinoma (penetrating cancer): 70% of all gastric cancers
References
- ↑ Dooley CP, Larson AW, Stace NH, Renner IG, Valenzuela JE, Eliasoph J; et al. (1984). "Double-contrast barium meal and upper gastrointestinal endoscopy. A comparative study". Ann Intern Med. 101 (4): 538–45. PMID 6383166.
- ↑ Longo WE, Zucker KA, Zdon MJ, Modlin IM (1989). "Detection of early gastric cancer in an aggressive endoscopy unit". Am Surg. 55 (2): 100–4. PMID 2916797.
- ↑ http://radiopaedia.org/articles/gastric-carcinoma