A 35-year-old Indian man presents with a rapidly enlarging abdominal mass and elevated LDH. Biopsy shows a highly proliferative lymphoma with a 'starry sky' pattern and t(8;14) translocation. What is the most common site of presentation for this lymphoma?
A. Abdomen (ileocecal region)
B. Axillary lymph nodes
C. Inguinal lymph nodes
D. Mediastinum
Explanation
Burkitt Lymphoma: Most Common Site
Key Point
Burkitt lymphoma most commonly presents in the abdomen, particularly the ileocecal region, accounting for ~50% of presentations. This is especially true in endemic (African) and sporadic (Western/Indian) forms.
Clinical Presentation by Geographic Form
Table
Form
Most Common Site
Frequency
Age
Endemic (African)
Jaw (mandible)
50–80%
Children 4–7 years
Sporadic (Western/Indian)
Abdomen (ileocecal)
50–60%
Adolescents & young adults
Immunodeficiency-associated
CNS, GI, bone marrow
Variable
Immunocompromised
High-YieldNEET PG
In India and Western countries, the sporadic form predominates, and abdominal presentation (especially ileocecal region) is most common.
Why Ileocecal Region?
1.
Lymphoid tissue density — Peyer's patches and gut-associated lymphoid tissue (GALT) are abundant in terminal ileum and cecum
2.
Rapid proliferation — Burkitt is the fastest-growing human malignancy; GI lymphoid tissue provides fertile ground
3.
Clinical consequences — Presents with abdominal pain, obstruction, bleeding, or perforation
Cytogenetics: t(8;14)(q24;q32) — MYC translocation to immunoglobulin heavy chain locus
Proliferation: Ki-67 ~100% (nearly all cells in cycle)
LDH: Markedly elevated (reflects tumor burden)
Clinical Pearl: Abdominal Burkitt
Warning
Abdominal Burkitt can present with acute surgical abdomen (perforation, obstruction) and may be mistaken for appendicitis or intussusception. Rapid diagnosis and chemotherapy are essential — this is a medical emergency despite being highly chemosensitive.
Sites in Order of Frequency (Sporadic Form)
1.
Abdomen (ileocecal) — 50–60%
2.
Peripheral nodes (inguinal, axillary) — 20–30%
3.
Mediastinum — 10–15%
4.
CNS — 5–10% (at presentation or relapse)
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