Multiple endocrine neoplasia 2A (MEN 2A), or Sipple's syndrome is a rare inherited dominant syndrome, characterised by medullary thyroid carcinoma, adrenal pheochromocytoma and hyperparathyroidism, due to specific RET proto-oncogene mutations. The women with MEN 2A syndrome are at risk of complicated pregnancy because of unrecognised pheochromocytoma and transmission of RET mutation to the progeny. We report a case of a woman with MEN 2A diagnosed in early pregnancy. Alpha-blockade medical therapy was used effectively and time was given for fetal maturation. Uncomplicated vaginal delivery performed under epidural analgesia. Six weeks postpartum adrenalectomy, thyroidectomy and parathyroidectomy were performed uneventfully.
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