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Related Experiment Video

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A Puzzling Case of Pouch Pathology.

Harman Rahal1, Dean Ehrlich2, Harold Paredes2,3

  • 1Department of Internal Medicine, UCLA Medical Center, Los Angeles, CA.

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This is the first reported case of Burkitt lymphoma in a patient with familial adenomatous polyposis (FAP) following ileal pouch-anal anastomosis. The rapidly growing tumor presented as a hematochezia, highlighting a rare gastrointestinal malignancy presentation.

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Area of Science:

  • Gastroenterology
  • Oncology
  • Genetics

Background:

  • Familial adenomatous polyposis (FAP) is an inherited condition predisposing to colorectal cancer.
  • Ileal pouch-anal anastomosis (IPAA) is a surgical procedure used for ulcerative colitis and FAP.
  • Burkitt lymphoma is an aggressive non-Hodgkin lymphoma.

Observation:

  • A 36-year-old male with FAP post-proctocolectomy with IPAA presented with hematochezia.
  • Pouchoscopy revealed a rapidly enlarging 4-cm mass in the distal ileal pouch.
  • Histopathology confirmed Burkitt lymphoma.

Findings:

  • This is the first documented case of Burkitt lymphoma in an FAP patient with an IPAA.
  • The patient achieved complete remission with chemotherapy.
  • The case highlights an unusual presentation of a rapidly growing tumor in adult gastroenterology.

Implications:

  • This case expands the known spectrum of malignancies associated with FAP and IPAA.
  • It underscores the importance of vigilant surveillance for rare tumors in this patient population.
  • Highlights the need for awareness among gastroenterologists regarding rare, rapidly progressing tumors post-IPAA.