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Gastric GIST Tumors

  • Intraluminal vs Extraluminal
  • Under or over 5cm
  • Variable vascularity
  • Presence of calcification
  • Extra-gastric spread

 

Gastric GIST Tumor

Gastric GIST Tumor

 

Gastric GIST Tumors

 

Gastric GIST Tumors

 

Gastric GIST Tumors

 

Gastric GIST Tumors

 

Gastric GIST Tumors

 

Gastric GIST Tumor

Gastric GIST Tumor

 

Gastric GIST Tumors

 

Gastric GIST Tumors

 

Gastric GIST Tumors

 

Gastric GIST Tumor

Gastric GIST Tumor

 

Gastric GIST Tumors

 

Gastric GIST Tumors

 

Gastric GIST Tumors

 

Gastric GIST Tumor with Faint Calcification

Gastric GIST Tumor with Faint Calcification

 

Gastric GIST Tumors

 

Gastric GIST Tumors

 

Gastric GIST Tumors

 

Gastric GIST Tumors

 

GIST Tumor with Spread In the Abdomen

  • Liver
  • Omentum
  • Mesentery
  • Lymph nodes

 

Gastric GIST Tumor with Spread

Gastric GIST Tumor with Spread

 

Gastric GIST Tumors

 

Gastric GIST Tumors

 

Gastric GIST Tumors

 

Gastric GIST Tumors

 

Gastric GIST Tumors

 

Gastric GIST Tumors

 

Gastric GIST Tumors

 

Gastric GIST Tumor with Spread

Gastric GIST Tumor with Spread

 

Gastric GIST Tumor with Spread

Gastric GIST Tumor with Spread

 

Gastric GIST Tumors

 

Gastric GIST Tumors

 

Gastric GIST Tumors

 

Gastric GIST Tumors

 

Gastric GIST Tumors

 

What can mimic a GIST tumor?

  • Large gastric adenocarcinoma
  • Lymphoma
  • Metastases to stomach (melanoma)
  • Adrenal carcinoma
  • Pancreatic mass including SCA and PDAC
  • Retroperitoneal mass

 

Metastases to the Stomach: Facts

Overview
  • Rare (<1% of sites of metastatic disease)
  • Hematogenous spread from melanoma and breast, lung, renal, or ovarian cancers
  • Direct invasion from liver, pancreas, or colon cancers
Imaging Findings
  • Solitary or multifocal mural or exophytic masses
  • Can be polypoidal, ulcerated, or cavitary
  • Fluoroscopic images may show multifocal ulcerated masses as targetoid lesions
  • Direct infiltrative involvement from adjacent visceral neoplasm (mostly from the pancreas, esophagus)

 

The Diagnosis of a Gastric GIST Tumor can be challenging

 

 

Gastric GIST Presents as a Pancreatic Mass

 

 

Gastric GIST Tumor Simulates a SPEN

Gastric GIST Tumor Simulates a SPEN

 

Gastric GIST Tumors

 

Gastric GIST Tumors

 

Gastric GIST Tumors

 

 
 

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