Vitamin B12 selective malabsorption syndrome in children

Vitamin B12 selective malabsorption syndrome (Imerslund-Grasbeck syndrome) is a rare family history of protein B12 with proteinuria malabsorption disorder, which usually occurs in infancy, due to intestinal absorption of vitamin B12 receptor function is not good , And produce a series of blood system syndromes. Also known as familial selective vitamin B12 malabsorption syndrome, congenital vitamin B12 malabsorption, Imerslund syndrome, Imerslund-Graesbeck syndrome and so on.