Terminal ileal lymphoma resembling abdominal abscess

Description

A 23-year-old man presented to the emergency service with abdominal pain. The ultrasound study showed an area with thick wall and internal air–fluid levels. Appendix vermiformis could not be distinguished as a dividual structure. Radiological appearance was thought to be periapendicular abscess due to the perforation of appendix vermiformis. However, due to the persistence with normal small bowel loops shown, this area could be a possible dilated bowel loop with mural thickening. Therefore, contrast-enhanced abdominal CT examination was performed. CT showed aneurysmal dilatation and minimally enhancing mural thickening which reaches 3 cm in one wall, from right lower quadrant to left lower quadrant in an approximately 20 cm terminal ileal segment. This segment included ileocaecal valve (figure 1A, B). In retrocaecal region, appendix vermiformis diameter was in normal limits (6 mm), but there was no inflammatory finding in the fatty planes (figure 1C). Findings were well-matched primary gastrointestinal lymphoma. The diagnosis...

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