Safe and successful birth following pelvic radiotherapy for rectal mucosa-associated lymphoid tissue lymphoma: a case report

J Med Case Rep. 2017 Feb 1;11(1):26. doi: 10.1186/s13256-016-1193-z.


Background: Mucosa-associated lymphoid tissue lymphomas can occur in various parts of the body, and half of mucosa-associated lymphoid tissue lymphomas occur in the gastrointestinal tract. Gastric mucosa-associated lymphoid tissue lymphoma is the most common lymphoma of the gastrointestinal tract and primary rectal mucosa-associated lymphoid tissue lymphoma is very rare. Because of the high radiosensitivity of mucosa-associated lymphoid tissue lymphomas, this condition can be controlled with radiotherapy of approximately 30 Gy alone. However, ovarian dysfunction as an adverse event of radiotherapy for pelvic lesions can become a problem in girls and women. We report a case of a 28-year-old woman with rectal mucosa-associated lymphoid tissue lymphoma who safely gave birth to a baby following 30.6 Gy radiotherapy to her whole rectum.

Case presentation: A 28-year-old Japanese woman became aware of bloody stools and was diagnosed as having Lugano I rectal mucosa-associated lymphoid tissue lymphoma. She was referred to our institute and initiated on radiotherapy. However, she expressed a desire to bear children. We used horizontally opposed pair fields for radiotherapy to minimize the irradiation to her endometrium and ovary. A total dose of 30.6 Gy was given in 17 fractions of 1.8 Gy by 10-Megavolt X-ray linear accelerator. As a result, one-third of her uterus and half of her ovary were outside the irradiation field. After approximately 1 year of treatment, positive pregnancy was confirmed and finally she safely gave birth to a baby girl without congenital abnormalities.

Conclusions: This report provides hope for girls and women who have undergone irradiation for pelvic mucosa-associated lymphoid tissue lymphomas and who desire to bear children.

Keywords: Natural pregnancy; Ovarian function; Radiotherapy; Rectal MALT lymphoma; Safe birth.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Female
  • Fertility Preservation*
  • Gastrointestinal Hemorrhage / etiology
  • Gastrointestinal Hemorrhage / pathology*
  • Gastrointestinal Hemorrhage / radiotherapy
  • Humans
  • Lymphoma, B-Cell, Marginal Zone / pathology
  • Lymphoma, B-Cell, Marginal Zone / radiotherapy*
  • Organ Sparing Treatments
  • Pregnancy
  • Pregnancy Outcome
  • Rectal Neoplasms / pathology
  • Rectal Neoplasms / radiotherapy*