Endocrine Abstracts

Introduction: There are patients who remain symptomatic with hypothyroidism despite apparent adequate replacement on levothyroxine (LT4) therapy. We present an observation where monozygotic twins responded only to combination therapy with liothyroinine (LT3), and were found to have a genetic variation which may have clinical significance in thyroid metabolism.Case report: A 47-year-old female with polyglandular auto-immune syndrome (APS1) presented with ...