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Hyperthyroidism in molar pregnancy: β-HCG levels do not always reflect severity
Bettina Chale-Matsau1, Samantha Mokoena2, Tanja Kemp2
1Department of Chemical Pathology, Faculty of Health Sciences, University of Pretoria and National Health Laboratory Service Tshwane Academic Division, South Africa.
Gestational trophoblastic disease (GTD) can cause hyperthyroidism. Beta-human chorionic gonadotrophin (β-hCG) levels do not always predict disease severity or prognosis in patients with GTD.
Area of Science:
- Endocrinology
- Gynecology
- Oncology
Background:
- Molar pregnancy involves abnormal trophoblastic cell proliferation, leading to elevated human chorionic gonadotrophin (hCG) levels.
- Elevated hCG can cause secondary hyperthyroidism due to structural similarity with thyroid-stimulating hormone (TSH).
Purpose of the Study:
- To investigate the relationship between beta-human chorionic gonadotrophin (β-hCG) levels and disease severity in gestational trophoblastic disease (GTD).
Main Methods:
- Case study of two patients presenting with vaginal bleeding and abdominal pain.
- Diagnostic procedures included ultrasound, β-hCG measurement, and thyroid function tests.
Main Results:
- Both patients diagnosed with GTD and hyperthyroidism based on elevated β-hCG and thyroid function tests.
- Despite lower β-hCG, one patient experienced a severe thyroid storm, while the other with higher β-hCG remained stable.
Conclusions:
- Beta-human chorionic gonadotrophin (β-hCG) levels may not consistently correlate with the clinical severity or patient prognosis in gestational trophoblastic disease (GTD).
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