Why is coeliac disease endemic in the people of the Sahara?

The prevalence of antiendomysial antibody (AEA) in 989 Saharawi children was 5.6%. Intestinal biopsies in a subsample confirmed that AEA is a marker of coellac disease in people living in a developing country.

Bone marrow necrosis foreshadowing acute lymphoid leukemia.

Necrosis of the bone marrow is rarely observed during life. Less than 50 cases have been reported, for the most part in patients with leukemia. The finding of bone marrow necrosis in children is even more rare.