Is serum vitamin B12 decrease a necessity for the diagnosis of subacute combined degeneration?: A meta-analysis

Conclusion: Decreased level of serum vitamin B12 may not be a necessity for the diagnosis of SCD. Approximately one third of the SCD patients have normal or elevated serum vitamin B12 level. No differences were found in clinical severity between patients with normal or elevated serum vitamin B12 level and those with low level of serum vitamin B12 on admission.
Source: Medicine - Category: Internal Medicine Tags: Research Article: Systematic Review and Meta-Analysis Source Type: research