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The Cancer in Pregnancy Forum

Archived Questions and Answers
This Forum has been the centre of an exceptional exchange of knowledge diagnosis, treatment, symptoms and other effects of cancer during pregnancy and lactation. All are welcome to review the Questions and Answers posted here, provided that they acknowledge and accept the important proviso and disclaimer below.
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Forum > Specific Cancer: Specific Cancer
Thyroid cancer - Transmission of cancer during pregnancy

NVP Counsellor
Date: 2007-01-19

Question:
I just recently was scheduled for a thyroidectomy. While in surgery the dr. found papillary cancer and removed my total thyroid. My question is that I had a baby just 4 months prior to that diagnosis and was wondering if it was possible for the cancer cells to have spread to my baby? Should I have her checked for cancer? or thyroid disease? I did take my synthyroid faithfully during pregnancy.

Answer:
Cancer during pregnancy is a rare event, though thyroid cancer is one of the common types of cancer developed during pregnancy. Many cancers developed during pregnancy can metastasize to the placenta but not to the fetus (Obstet Gynecol Surv 1989;44: 535-540.). The transfer of maternal cells to the fetus is very rare as well (NEJM 1999; 341:120-121). Detailed ultrasound of the fetus can help in diagnosis. A specialized perinatologist should be involved in the care of mother and baby.

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