This is a case of a young 34-year-old man who had symptomatic hyperthyroidism from an extremely high serum beta HCG level in the setting of a metastatic stage IIIC mixed germ cell tumour. The patient's thyroid function normalised with treatment of the cancer as the beta HCG levels declined.
BMJ case reports. 2018 Jun 08*** epublish ***
Deep Shah, Nida Khalid
Internal Medicine, Rochester General Hospital, Rochester, New York, USA.