Searchable abstracts of presentations at key conferences in endocrinology

ea0074ncc53 | Highlighted Cases | SFENCC2021

A case of heterophile antibody interference causing a falsely positive thyroglobulin in a patient with non-relapsing thyroid carcinoma

Dewdney Charlotte , McDonald Lindsay , Isa Aidah , Smith Karen , Muir Kenneth

Case History: We report the case of a 59-year-old lady with a persistently elevated serum thyroglobulin following a total thyroidectomy for multifocal papillary thyroid carcinoma. She subsequently underwent radioiodine therapy following which her serum thyroglobulin remained elevated. However, it was later found to be almost undetectable at 0.3 μg/l after a change in laboratory method. This discrepancy prompted further investigation, and repeat analysis using the original assa...