Large bowel lymphoma

Dr Henry Knipe et al.

Large bowel (colorectal) lymphoma is a very rare tumour, accounting for < 0.5% of primary colorectal malignancies, ~1.5% of all lymphomas, and ~15% of gastrointestinal lymphoma. Large bowel lymphoma differs from gastric and small bowel lymphoma in clinical presentation, management and prognosis. 

Most commonly occurs in patients in their forties to sixties, with increasing incidence with age. There is a slight male predominance (M:F = 1.5:1) 2

As with other colorectal tumours, primary symptoms are weight loss, pain and less commonly per rectal bleeding 2. Large bowel obstruction and perforation are rare. 

Diffuse large B-cell lymphoma is the most common subtype (~65%) of large bowel lymphoma. The underlying aetiology is unknown but an infective/inflammatory pathogenesis is suspected as their is higher incidence in patients with HIV/AIDS, inflammatory bowel disease and post-transplantation immunosuppression 1

The majority (~70%) of large bowel lymphomas occurs in the right colon 2

Compared to colorectal adenocarcinoma, lymphoma affects longer and multiple colonic segments 4

Lymphoma
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Article Information

rID: 33239
Section: Pathology
Synonyms or Alternate Spellings:
  • Primary colorectal lymphomas
  • Colonic lymphomas
  • Rectal lymphomas
  • Large bowel lymphomas

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Cases and Figures

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    Case 1: secondary to Burkitt lymphoma
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