18th February 2024

A 34-year-old female presents with tachycardia and sweats

A 34-year-old female presents with tachycardia and sweats. She feels that she has been losing weight, and her periods have become light and irregular. She has also experienced diarrhoea for two weeks with no apparent trigger. Examination reveals a fine tremor in her hands. A neck examination reveals a generally enlarged thyroid with no focal nodule. Blood tests reveal elevated fT4 and low TSH levels. Anti-TSH receptor antibodies were positive.

Given the likely diagnosis, which hypersensitivity reaction is the underlying pathogenesis for this condition?

Select the SINGLE most appropriate option from the list below. Select ONE option only.