Masked vitamin B12 deficiency in pernicious anaemia: A diagnostic trap due to assay interference—Case report

Masked vitamin B12 deficiency in pernicious anaemia: A diagnostic trap due to assay interference—Case report

<p dir="ltr">Megaloblastic anaemia is mainly caused by vitamin B12 or folate deficiency. However, rare cases present with discordant laboratory findings, particularly falsely elevated vitamin B12 levels due to assay interference from anti-intrinsic factor antibodies, complicating dia...

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Main Author:	Mohammed Abdulgayoom (14777791) (author)
Other Authors:	Elabbass Abdelmahmuod (14777287) (author), Abdulrahman F. Al-Mashdali (17148316) (author), Yara R. Abuazab (22997233) (author), Aliaa Amer (14150418) (author), Ibrahim Ganwo (22928656) (author), Shehab Mohamed (12241364) (author)
Published:	2025
Subjects:	Biomedical and clinical sciences Cardiovascular medicine and haematology Nutrition and dietetics megaloblastic anaemia B12 deficiency pernicious anaemia anti-intrinsic factor antibody assay interference
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