Can CT Scans Detect Stomach Cancer?

Computed Tomography (CT) scans are a vital diagnostic tool in identifying stomach cancer, with approximately 85% of cases being detectable through this imaging method. The stomach, a sac-like organ located in the upper middle part of the abdomen, often shows specific changes on CT scans that suggest the presence of cancer.

CT scans can reveal thickening of the stomach wall, which is a common indicator of gastric malignancy. Depending on the location of the tumor, different symptoms and imaging characteristics may be observed:

In cancers located at the upper part of the stomach, such as near the esophagogastric junction, CT scans may show localized wall thickening accompanied by a sensation of obstruction during eating. Similarly, tumors in the gastric antrum or body also present with gastric wall thickening, which can be clearly visualized using CT imaging.

Ulcerative gastric cancers often appear as frog-like ulcers or cauliflower-like growths during endoscopic examination, though CT may show associated wall changes. Tumors near the pylorus can cause obstruction symptoms, and while CT can detect structural changes, the detailed morphology of gastric cancer is best assessed through endoscopy.

It's important to note that gastroscopy remains the gold standard for diagnosing stomach cancer. This procedure allows for the detection of early-stage gastric cancer and provides a clear view of the tumor's physical characteristics. Additionally, endoscopic ultrasound can help in staging the cancer accurately.

If you experience persistent gastrointestinal symptoms such as stomach discomfort or upper abdominal pain, it is highly recommended to consult a healthcare provider and consider undergoing a gastroscopy for early diagnosis.