1. Diagnosis: Gastric lymphoma (Burkitt’s lymphoma)
Primary Gastric Lymphoma
1%-5% of all gastric malignancies
Most common site of extranodal lymphoma accounting for 50% - 70% of all primary GI lymphomas
Burkitt’s lymphoma
Aggressive form of B-cell lymphoma
Usually found in children or immunocompromised adults
Usually ileocecal mass or thickened folds and narrowing in the distal ileum
Rare in the stomach or colon

2. Primary gastric lymphoma
CT findings
Marked thickening of gastric wall (2~4cm) with low contrast enhancement
Extensive lateral extension of tumor due to submucosal spread
Rare gastric outlet obstruction
Preserved perigastric fat plane
Extensive nodal enlargement is often seen.
Features favoring lymphoma rather than adenocarcinoma
Preservation of the perigastric fat planes, particularly in the presence of a bulky tumor
Gastric lumen is preserved without gastric outlet obstruction.
Transpyloric spread is more common than carcinoma
Infrarenal bulky lymph nodes

3. References
RadioGraphics 2014;34:
RadioGraphics 2007;27:
Am J Roentgenology 2002;179(5):