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Stomach CT Appearances

 

 


Gastric GIST Tumor CT Findings

Benign

  • Well-circumscribed endophytic, exophytic, or bilobed mass with its epicenter in the submucosa
  • Ulceration can be visualized in lesions larger than 2cm (bullseye sign)

Aggressive

  • Large (>5cm) heterogenous mass
  • Necrosis, hemorrhage, with or without calcifications
  • Lymphadenopathy, with or without metastases
  • Invasion of adjacent viscera (pancreas, colon)
  • Ulcerations very common in malignant GISTs
  • Malignant GISTs are often inhomogenous with central necrosis
  • Metastases to liver is most common site of metastases

Gastric GIST Tumor CT Findings

Related Pearls: GIST Tumors

Related Lectures:
CT Evaluation of Gastric Tumors: Pearls and Pitfalls Part 2
MDCT Evaluation of Gastric Malignancies: Pearls and Pitfalls - Part 2
Gastric GIST Tumors: Pearls and Pitfalls - Part 1
Gastric GIST Tumors: Pearls and Pitfalls - Part 2
Gastric GIST Tumors: Pearls and Pitfalls - Part 3
CT of the Stomach: Beyond the Common Gastric Masses - Part 1

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