Pernicious anaemia and neurophysiological studies in Arabs.

While pernicious anaemia is a disease predominantly affecting people of north European descent, there is increasing awareness of its occurrence in other ethnic populations. We document herein details of six Arabs who had pernicious anaemia and significant neurophysiological abnormalities. All the patients made a complete haematological and symptomatic recovery following parenteral administration of hydroxycobalamin. The diagnosis of pernicious anaemia should be considered in Arab patients of all ages who have macrocytic anaemia, or symptoms of peripheral neuropathy. We caution against the empirical use of folic acid and vitamin B12 in the management of patients with chronic anaemia.