Radiology in primary gastric lymphoma

Area of Science:

• Gastroenterology
• Radiology
• Oncology

Background:

• Primary gastric lymphoma (PGL) is a rare malignancy.
• Distinguishing PGL from gastric adenocarcinoma on imaging can be challenging.
• Accurate radiographic assessment is crucial for timely diagnosis.

Purpose of the Study:

• To compare radiographic findings in patients with primary gastric lymphoma and gastric adenocarcinoma.
• To identify imaging features that differentiate these two conditions.
• To reduce misdiagnosis of PGL.

Main Methods:

• Retrospective review of upper gastro-intestinal radiographic studies.
• Comparison of 19 patients with PGL against matched patients with adenocarcinoma.
• Analysis of tumor size, lesion type, and mucosal patterns.

Main Results:

• Large, infiltrating tumors were significantly more common in PGL (n=10).
• Ulcerative lesions predominated in adenocarcinoma (n=15).
• Coarse, irregular mucosal patterns and shallow ulcerations were frequently observed in PGL (n=18).

Conclusions:

• Specific radiographic features can help differentiate primary gastric lymphoma from adenocarcinoma.
• Early recognition of these features is important due to the rarity and potential for misjudgment of PGL.
• No significant difference in survival was noted between the two groups in this study.